reminder: do not trust color codes

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maxkracht
Posts: 931
Joined: Tue Dec 10, 2019 7:18 pm
Location: Iowa, USA

reminder: do not trust color codes

Post by maxkracht »

Just started rebuilding a filmosound amp. I generally gut the whole thing, remove transformers, clean, then reinstall. I don't always pay too much attention when clipping things out and i've rebuilt a ton of various filmosounds at this point so usually no surprises. When reinstalling the power transformer I noticed the HT winding had two red/yellow and one red wire. Would have assumed this meant red center tap, turned out to be one red/yellow for the CT and one red/yellow that was supposed to be solid red. Glad my paranoia was louder than my overconfidence and I checked before wiring it up...
Stevem
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Joined: Fri Jan 24, 2014 3:01 pm
Location: 1/3rd the way out one of the arms of the Milkyway.

Re: reminder: do not trust color codes

Post by Stevem »

👍
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!

Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
patrick620
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Joined: Mon Feb 14, 2011 4:10 am
Location: Wichita, Ks.
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Re: reminder: do not trust color codes

Post by patrick620 »

Thank you for the heads up and thank you for reinforcing my disdain towards filmosound amps . I swore off of them a long time ago. Total PITA as far as I am concerned. They are a rats nest shoehorned into a tiny box. Gutting them and starting over is a good idea. What circuit to you go with upon rebuild? 5E3 ish? And more importantly, why filmosound? If you are going to gut it and start over I could think of better ways. No insults, I am am just curious. In my hay day I would gut Hammond AO-35 amps and turn them into Lite II b with much success. Made my own boards etc. All I kept was the chassis and the iron.
maxkracht
Posts: 931
Joined: Tue Dec 10, 2019 7:18 pm
Location: Iowa, USA

Re: reminder: do not trust color codes

Post by maxkracht »

No special affinity, aside from thinking the faceplate looks cool and the iron is decent. People keep asking me to work on these, so I keep doing it. I've done a lot of hammond rebuilds as well.. I'm usually doing something very roughly 5e3/6g2ish. More of a ratsnest than I would like, but much better than it was...
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