Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

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newking70
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Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by newking70 »

What were the results?
Stevem
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by Stevem »

It would be fine for a Tweed Fender with 6L6 outputs , but for even with just a Bkackface bandmaster or Proreverb it would be pushed too hard as even these amps with a good power supply and good strong output tubes can top 30 watts of RMS power and top 48 watts of peak power!
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didit
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by didit »

Hello -

Uncertain what is behind the question. That Stancor is rated 35W "HiFi" with 150mA DC spec'ed for the primary. Would do 40W handily in guitar amp. Higher-voltage EL34 Express clone is just that. Or better perhaps, use sale proceeds from your A-3801 to buy full set of iron to build whatever is desired, as ~$500 seems the listing price on Reverb?

Best .. Ian
Last edited by didit on Mon Dec 03, 2018 1:07 pm, edited 1 time in total.
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by Roe »

The express's power transformer is rated for 300mA, whereas most fender PTs are rated at 200-240mA. I doubt that this will blow a A3801 but I have not tried it
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kanderson70
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by kanderson70 »

Been wondering the same only mine is a Pacific 11415 output. About to build a blackface tremolux and was wondering if it would work. Ended up buying a Classic Tone transformer just to be on the safe side. :lol:
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M Fowler
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by M Fowler »

The Pacific 11415 OT is 6k6 primary so if that is what you want in your tweed it sure can handle the power.

But I would choose the Magnetic Components transformer.
11415_512.doc
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kanderson70
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by kanderson70 »

M Fowler wrote: Thu Dec 06, 2018 2:19 am The Pacific 11415 OT is 6k6 primary so if that is what you want in your tweed it sure can handle the power.

But I would choose the Magnetic Components transformer.

11415_512.doc
For tweed yes....but for blackface era Tremolux it calls for a 4k ohm secondary. Just was not sure if the 6.6k would work. I'll probably just stick with the Classic tone tranny.
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M Fowler
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by M Fowler »

For my brown faced Tremolux build I went with Weber PT W022798 and OT W022848 and Hammond choke 194B

Weber transformers aren't the best choice but I have had good track record since 2007 with these particular part numbers in about 4 different builds.
Normally ClassicTone or custom order Heyboer is my preferred choice.
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kanderson70
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by kanderson70 »

M Fowler wrote: Fri Dec 07, 2018 1:57 pm For my brown faced Tremolux build I went with Weber PT W022798 and OT W022848 and Hammond choke 194B

Weber transformers aren't the best choice but I have had good track record since 2007 with these particular part numbers in about 4 different builds.
Normally ClassicTone or custom order Heyboer is my preferred choice.

Nice looking build Fowler!
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Re: Anybody use a Stancor A-3801 type tranny in Tweed/Brown/Blackface type amp?

Post by tubeswell »

I used a SE Stancor A-8092 in a vibrochamp build. Sounds awesome
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