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Hoffman Amps Forum image Author Topic: Ao-29 parts  (Read 2219 times)

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Offline Seegs

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Ao-29 parts
« on: March 10, 2013, 08:17:51 pm »
i went to a local music trade show/swap meet. and was able to pickup some rola 12" speakers 10 ribbed alnico's. and this hammon ao-29. it seemed to have some decent parts in it. But from what i have gathered there is just a lot of crap in this. was wondering what are some good options to gut and remake an amp. was thinking of a 5e3 style or something along those lines.

the chassis and most of it all is trash but for the price i got it for i can't really lose

Offline guitardude57

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Re: Ao-29 parts
« Reply #1 on: March 11, 2013, 09:05:06 am »
The power transformers are pretty beefy on these.  Quite a few taps on them.

The carbon comps could be OK, I would measure them for actual values, if used again.

Some caps may be OK, but I wouldn't use the lytics.

I have a couple hanging around myself, waiting for use.  One that used 6V6's, and the other 6L6's.
The chassis are pretty obnoxious, but I have seen folks build with them.
"I am never surprised, and always amazed".


Mike

Offline DummyLoad

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Re: Ao-29 parts
« Reply #2 on: March 11, 2013, 11:43:16 am »
farm the iron and turret boards. scrap the rest. should make a nice 5E3 with tube rectifier or 6V6 plexi with SS rectifier. when i read these i am saddened somewhat b/c somewhere there is the scrapped remains of a M-100.

--pete

Offline m3moser

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Re: Ao-29 parts
« Reply #3 on: March 13, 2013, 10:15:20 am »
I'll just add that you will most likely need to drop the voltages a bit using this iron.  Its been my experience these can run high with modern voltages.

 


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