FS - - Two available: ADA Power Transformer for high power guitar amp

[freddi]

Open frame, NOS - apparently from an ADA high power tube guitar amp

Nominal 800vct - basically like a 278CX but better made.

Core size: 3 1/8" X 3 3/4" x 2 7/16" thick

imo they're quieter/ run cooler than "278CX" from the "90's"

No - load secondary voltages @119.9vac input to the 120vac primary (black/red. - there is also a 110vac tap, black/yellow on the primary)

HT ~ 445vac each side of CT
Filament ~3.48vac each side of CT

Years back when testing, with 120v on the 110v tap, rectified output with cap input and IN4007 diodes was 685vdc with a 3K load resistor and did not get "hot"

$55 each, not including shipping. Shipping = $16.00 for one - perhaps for both - - if both can fit with good protection into a "medium" Priority mail carton.

Paypal only, US only.

https://i.imgur.com/aBX8bu5.jpg

https://i.imgur.com/sj6hHhb.jpg

 

[freddi]

"bump" - as mentioned above these run cooler and quieter than Hammond iron - their only downside is lack of endbells

I'm not sure how to rate their voltage based on no load conditions and my old testing under 2K and 3K loads.

They are good xformer for amplifiers needing high B+