Well it's happening...my 48x60 build

BoilermakerFan · Feb 22, 2018

OH_Varmntr said:
She's sounding pretty good with no more speaker protection problems. There is, however, a steady hum, which I'm attributing to the same crusty 40+ year old electrolytic capacitors and some transistors that probably need replaced. If it lasts this year, I'll plan on recapping and replacing transistors next winter as a project. For now, I can easily drive them to a level that's uncomfortable to the ears anywhere in the shop, which is just right.

Nice job! A hum is usually the caps as you stated or a cold solder joint on a ground. There are a bunch of carbon resistors in there too, which do drift with age, but those should be easy to check with a DMM across them. I'd be inclined to just focus on the PS side of things and even resolder or at least reflow the existing solder on all PS connections. You can go a step further and put in a grounding filter... I forget the correct term ATM, but it's a cap and resistor arrangement that drops the hum.

OH_Varmntr · Feb 22, 2018

The outputs to the speakers already have RC circuits paralleled to the speakers, but yeah I don't trust the stability of the components any more.

NUTTSGT · Feb 22, 2018

OH_Varmntr said:
Aaaaaaand now I can't hear. Makes for a much more productive work environment around here.
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I'm guessing that is 104.7 WIOT. :rocker:

BoilermakerFan · Feb 23, 2018

OH_Varmntr said:
The outputs to the speakers already have RC circuits paralleled to the speakers, but yeah I don't trust the stability of the components any more.

"Implement a proper ground-loop breaker from earth ground to the case star ground."
"a ground loop breaker is just that, a parallel resistor and
capacitor. It doesnt really matter how much stuff is in the case, it is
just a compromise between best shielding and safety. You get a hair
better performance not connecting earth ground, and just tying the case to
signal ground, but if you get a power short to the case, then having the
case tied to earth ground is a lifesaver. Ground loop breaker is
basically just as safe."
"0.1uF 305V ClassY cap and 10ohm 5W resistor"

I had to go back through years of emails with my old amp building buddies...

It is a RC circuit at the star ground of the receiver, not the speakers. It may not be possible to implement a proper star ground on your old receiver, but you should be able to add the RC GLB between the earth ground inlet on the receiver and the chassis ground.

But most hum in old receivers comes from the power supply caps, failing solder joints, or corrosion at the ground points. If there are multiple ground points, you can usually disconnect them and run a new ground wire to the primary grounding point on the chassis where the earth ground comes into the amp from wall. Running all wires to the single point is a proper star ground. Then the RC GLB goes in between the start ground to the earth ground coming into the amp to break any loops coming in to the amp.

If you have room on the back, you can add a fused and filter IEC style power inlet that helps even more, but that would involve cutting the sheet metal to accept the power inlet. On a highly collectable receiver like my Pioneer SX3900 that would be a bad thing to do. On the Sherwood or other less collectable receivers, go for it!

OH_Varmntr · Feb 23, 2018

NUTTSGT said:
I'm guessing that is 104.7 WIOT.

I couldn't tell you honestly. I haven't utilized the FM receiver in the unit yet. :dunno:

Boilermaker thanks for the info. Things have definitely changed on the power side of things since the 70s. I'll have to do some more checking into that. :beer:

OH_Varmntr · Feb 23, 2018

Exhaust fan installed! Still plugging away installing insulation and interior steel.

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mrmiller · Feb 23, 2018

Very nice looking building so far! I always liked the idea of finishing off the inside with tin.

bobbyjean · Feb 25, 2018

OH_Varmntr said:
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is that the concentric exhaust? how is it working for you....almost seems like the wall thimble is out there

OH_Varmntr · Feb 25, 2018

Yes it’s a concentric kit. I love it, except that the silicone gaskets weren’t shipped with it so I had to wait a few weeks over Christmas to get them.

The thimble is actually on the inside of the building. It’s the box that the intake air terminates to and the flue passes through. As the intake pipe then passes through the wall, the flue pipe is inside of it, so the intake pipe acts as the thimble to give you proper clearance between combustibles and the flue. Nice setup, and works great.

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BUGTHUG · Feb 25, 2018

That receiver looks a lot like my Marantz 2252, I bought it new in 1976 in San Diego while stationed there. A lot of us sailors were into sound systems. Being able to pick stuff up at the big PX on base in the Philippine's, made it more affordable. We all brought back all the latest and greatest Japan made equipment, some wasn't available in the U.S. Good times!

OH_Varmntr · Feb 25, 2018

Sherwood wasn’t very well known but they’re nice nonetheless. I’m always looking for vintage gear, hoping to find a Marantz sooner or later. [emoji106]

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BoilermakerFan · Feb 25, 2018

OH_Varmntr said:
Sherwood wasn’t very well known but they’re nice nonetheless. I’m always looking for vintage gear, hoping to find a Marantz sooner or later. [emoji106]

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Oh, then you need to track down a Yamaha CR-1020 or the apex of the line, the CR-2020. I love my CR-620 and I have the schematics of the 620, 820, 1020, and 2020. The CR-620 was rated 35W/ch 20-20K but it clips around 77W/ch! It sounded better than my late '80s Kenwood 100W/ch or my buddy's mid-2000s Sony 125W/ch receivers. And if you still spin vinyl, the CR-xx20 series all had discrete phono stages except the TOTL 2020, and they sound great with vinyl. I haven't cleaned up my Pioneer SX3900 yet. I need to get some more canned air so I can blow it out, and check all the bias measurements before playing it.

OH_Varmntr · Mar 14, 2018

I'm not much into vinyl, it's just one more hobby that would take money away from others

My wife and I are expecting another baby in September, so I'm trying not to let the shop progress get too far onto that back burner, but that's how it goes sometimes. I picked up a toilet and utility sink for the shop so I'll be playing with getting the bathroom and office framed next. I'll be using 9 1/2" i-joists to span 16' for the room.

Had the boy out and thought it funny how small he looks next to that 14' wall.

https://flic.kr/p/23NWPzF

BoilermakerFan · Mar 22, 2018

OH_Varmntr said:
I'm not much into vinyl, it's just one more hobby that would take money away from others

My wife and I are expecting another baby in September, so I'm trying not to let the shop progress get too far onto that back burner, but that's how it goes sometimes. I picked up a toilet and utility sink for the shop so I'll be playing with getting the bathroom and office framed next. I'll be using 9 1/2" i-joists to span 16' for the room.

Um, yeah... kids get a LOT more expensive as they get older too. And I still have an inexpensive Grado cartridge on my turntable even though I have a really high end one to put on it later, but my son would end up trashing it on accident. So it stays safely tucked away.

OH_Varmntr · Apr 12, 2018

It's been awhile but I've slowly been chipping away at the shop.

The office, bathroom and stairs have been framed; and the floor has been installed on the mezzanine.

Roughed in some plumbing as well for the washing machine water and drain box so I can continue on with the insulating and siding.

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OH_Varmntr · Apr 21, 2018

Took a few hours and built a beehive for my coming colony. Should be ready for pickup in a few weeks.

Used a rabbet in the main body but decided to go with finger joints for the super. The next few I build I'll definitely go with all finger joints.

[url=https://flic.kr/p/26kGqaN]

https://flic.kr/p/26kGqaN

BoilermakerFan · Apr 25, 2018

The hive looks really nice.

Do you have the Porter-Cable dovetail jig or a different setup to cut the finger joints?

OH_Varmntr · Apr 26, 2018

Thank you. No dovetail jigs, just homemade jigs used to make finger joints. I have a jig for each size made from a scrap of wood and a piece cut to the same width as my finger joints. I’ll snap a few pics tomorrow.

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OH_Varmntr · Apr 27, 2018

Here are the jigs for the finger joints.

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I hauled 13.5 tons of #6 limestone for up close to the building. The slag I get from work will react chemically with concrete and break it up over time so it's limestone for the close up work. $17.25 a ton! Crazy! Also sat my precast pad for the mandoor.

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OH_Varmntr · Apr 27, 2018

Getting time to start expanding garden beds and to make my 1-hr round trip to get free wood chips more worthwhile, I doubled the depth of the bed on my dump trailer. We do no-till gardening in a bed of wood chips, Back to Eden style. Back to working on the shop...

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OH_Varmntr · May 9, 2018

A little update. All of the interior walls have been insulated and covered with steel, minus the walls of the 16x24 room. Over the garage doors I'll be using white aluminum flashing since the garage door tracks don't provide enough door clearance for the depth of the siding. Then I'll be painting the exposed wood on either side of the door.

I was also able to get a bunch of topsoil from the building site tilled up, graded and seeded.

OH_Varmntr · May 22, 2018

After all of the dirt work I've done (still have a bunch to go) and the fact that we've added over 20 trees to our yard recently, I've decided to sell my 3-point mowers for my 7000+ pound tractor and get a zero turn.

I found this gem of a John Deere M655 ZTrak about an hour and a half away and brought it home yesterday. 54" 7-Iron Commercial deck, 25HP, 1200 hours on the mower with 3 hours on a rebuilt short-block.

BoilermakerFan · May 23, 2018

The ZTR mowers are great and fast, but to me there is just something so fun about mowing with a big tractor pulling a 3-pt deck.

Maybe because that was one of my jobs at a YMCA summer camp for two summers. Bush hogging the fields was my favorite part of the gig... except the time I mowed over a huge ground hornet hive. I was mowing in 4th gear on a mid-50s RWD J-D. As soon as I saw the swarm I slammed the throttle wide open, just grabbed the transfer case lever, pulled it down to jump into 8th gear, and get the heck out of dodge! Then I turned off the PTO and raised the deck about a foot (if I raised it much more than that the tractor would wheelie). I never slowed down leaving the field or flying down the drive back to camp. I escaped with only 3 stings.

I had way too much fun on that tractor and I could maneuver it like it was a small riding lawn mower.

OH_Varmntr · May 23, 2018

Yep I loved mowing with the 3 points, especially at 72” wide. But I knocked 20 minutes off of my mowing time with this mower and that was only the first go around.

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OH_Varmntr · May 24, 2018

Long day and after 3 trips to the hardware I now have water to the shop. :bounce:

Then I went to mow with my Craigslist find of a zero turn and 10 minutes in I hear some nasty noise and the blades stop spinning and sparks are shooting out from the PTO cover. It had a new PTO installed with the rebuilt short block and it seems as though the bolt never got tightened back down and had backed out. Luckily the rear engine shroud kept the bolt from falling out completely and dropping the clutch off the crank. I got a hold of the seller and he said he's going to send me some money back to replace the clutch. We will see. Anywho, I ordered another one but here's the damage.

[url=https://flic.kr/p/27qHL4f]

[url=https://flic.kr/p/268fRux]

rattle_snake · May 25, 2018

Nice build you have going. keep up the good work

BUGTHUG · May 26, 2018

Ohhhh... that's tough, at least the seller was nice to help out with some cash. Should be glad its at a easy place to get to, and its not on the bottom of the block. :wtf:

JD probably makes it easy to get parts, but they are expensive, like everything else.
Have a safe weekend. BUG :thumbup:

OH_Varmntr · May 30, 2018

Thanks guys, I got the new pto clutch in and proceeded to find a screw in my left drive tire and flattened the tube. I can’t help but just laugh at my luck now.

Fertilized my grass I seeded in front of the shop and found 4 oaks that got planted when I tilled up my topsoil pile. Apparently the squirrels used it like crazy to store acorns last winter.

It was a great year for acorn and walnuts so we’ve got over 25 new seedlings sprouting around the property. Going to transplant some and will let the other grow where they are.

I’ve inherited a steel welding table, a 60+ gallon horizontal air tank, a steel shelf I’ll be using for steel storage and an old 36”x72” electrical cabinet I’ll convert to a storage cabinet. I’ll be getting some more stuff but not sure what yet.

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OH_Varmntr · May 31, 2018

$41 later and my mower tire has a new tube in it. That teaches me a lesson in being prepared I guess eh?

So a lot of the stuff I'm getting has sat outside for years. The buzzsaws have been sitting for 40+ years. My dad recalls cutting firewood as a young man with these and all the trouble they gave him. They still spin, believe it or not. I'm going to get one of those sand-siphon kits for a pressure washer wand so help strip this old equipment prior to paint.

Anywho, the cabinet, tank, welding table and a little Wissota E16 bench grinder. There are a few forge blowers behind the tank on the table.

Got some oaks put into pots to transplant tomorrow. These were in the soil next to the shop. I would have let them be, but with my septic system right there, I didn't want to mess with roots in the future.

Then this guy started rolling in and gave us one heck of a lightning show.

OH_Varmntr · Jul 2, 2018

It's been a month since an update so here we go. We had a nice party for my son turning 2 yesterday and I'm extremely pleased to say that it never got above 72 in the shop with nearly 40 people in here. With the ceiling fans running all out, keeping the doors shut and running a dehumidifier at 45% humidity, it stays very pleasant in the shop and I'm super happy with it. The last few days have been 90+ degrees with the sun beating down on the shop and everyone who came over for the party couldn't believe that I wasn't running an AC unit.

So, since it is that nice I'm building my sons birthday swing set in here. Happy Independence Day GJ!

BUGTHUG · Jul 4, 2018

right on

OH_Varmntr · Jan 12, 2020

Don't mind me, just dropping in for an update. No progress has really been made on the shop. I've been working in the shop rather than on it.

Fixed a blown brake line, RF bearing hub and sway bar links on my 1/2 ton Dodge work truck and snapped the bolts off the sway bar brackets that go into the frame. It's boxed there, and upon center-punching them to drill them out, I punched the remaining studs and nuts into the frame. Great. Decided to just weld the brackets in place since I don't expect this truck to last more than a few more years and my welder wouldn't lay a bead to save my life.

13VDC output at full tilt when it should be closer to 40VDC, and found both negative anode case stud rectifier diodes bad. Found a few upgrades on the bay for 18 bucks each. Had to open the holes up on the DC bus plates but other than that, cleaned everything up, new thermal paste and I'm up to 36VDC now.

https://flic.kr/p/2ieiqn2 https://www.flickr.com/photos/40740364@N08/, on Flickr

And here's my latest addition to the shop in the realm of tool storage. This was the control cabinet for a piece of equipment that we removed at work. Fully welded cabinet at 19'6" long. Tractor just barely had what it took but it got it off the trailer and placed.

It is gutted so I'll be adding shelves and whatever else I deem necessary for my "larger than toolbox" tools along with my wind/grind equipment, rigging, etc...

2 https://www.flickr.com/photos/40740364@N08/, on Flickr

Fits just right.

https://flic.kr/p/2ieeE8x https://www.flickr.com/photos/40740364@N08/, on Flickr

davo727 · Jan 13, 2020

Wow yeah nice cabinet! How tall?

mikeyhunts · Jan 13, 2020

That cabinet is awesome.

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OH_Varmntr · Jan 13, 2020

I haven't put a tape on the height yet but I'd venture to guess 6'6" or more. I'm 5'10" and can easily stand up inside with plenty of room to spare.

rattle_snake · Jan 13, 2020

nice score on the cabinet (aka, you ****).

royalton10 · Dec 6, 2020

Thanks for all your posts!

Well it's happening...my 48x60 build

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