Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Madison on August 10, 2010, 07:02:58 pm
-
I had one on borrow as my first amp from a collector.
Are there a bunch of different models of Supremes?
Were all the Champ style amps from Supro called Supremes?
If I recall, the one I had on had was very much like the one in this video.
(the end of the video shows the control panel.It's just one volume and inputs)
Looking for a schematic on this.
I remember that amp sounded very good cranked.
The owner wouldn't sell it to me, even at that time :cry:
-
(http://i90.photobucket.com/albums/k267/theundeadelvis/Supreme.png)
-
That one is an octal preamp push-pull amp with 2-6V6's.
-
Valco made their big money supplying cheap amps to Montgomery Wards. They also made amps for Gretsch. Supro was their "in house" brand. My Monkey Wards 62-9025 was the same circuitry as the Gretsch 6152 and the Supro Tremoverb. 3 different amps, in 3 different cabinets, with 3 different brands, but all electronically the same. I'm speculating that Supros were mostly built from left over parts from Montgomery Wards production runs. I researched the Thunderbolt quite thoroughly. There are no less than 4 different schematics floating around the web, one of which has a grievous error in the paraphase PI. Another with the bridge rectifier drawn shorted. The one that passed across my bench had a 5U4GB rectifier. There's no Thunderbolt schematic that I've seen besides my own that shows a 5U4GB rectifier.
>Are there a bunch of different models of Supremes?
Probably. Extremely likely given the "hand over fist" nature of the Valco Amplifier Co.
>I remember that amp sounded very good cranked.
11 is the Valco sweet spot.
Spinal Tap taper pots.
:grin:
-
Thanks for all the awesome info!
>>11 is the Valco sweet spot.
Spinal Tap taper pots.
:laugh: