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Home>Products>Supro>Triwec 1967 T3778 Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP. Dynaco?

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  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?
  • Triwec 1967 T3778  Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP.  Dynaco?

Triwec 1967 T3778 Output Transformers. SUPRO Thunderbolt 6L6 6V6 PP. Dynaco?

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  • Miss Lin2020-07-10 09:46:19
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Product Details

Featured Refinements: Vintage Output Transformer Country/Region of Manufacture: United States Brand: Triwec- Valco,Supro, Airline, Gretsch
Model: T3778

Product Description

If you want to restore your vintage Supro, Valco, Airline, Gretsch or Airline 1960s amp with  genuine vintage 1967 date coded Triwec brand transformers, here you are!

Price is for each transformer. 2 Available. I offer combined shipping discount. 3 Shipping options offered. So check which is best for your location.

Helping a retired amp repairman clear inventory. Date matched1967 push pull output Transformers. Correct transformer for the vintage Supro Thunderbolt or other vintage Valco, Supro, Airline, Gretsch etc. amps.

My Amp man friend thinks he removed them from a working Dynaco/ Dynakit stereo amp, another option to restore/repair/ DIY new build your 6V6 or 6L6 PP tube stereo amp with vintage iron.

Both have codes T3778, 5246704. So Triwec 1967, 4th week. Internet search indicates Valco, Supro, Airline, Gretsch etc. application. Supro Thunderbolt schematic lists T3778, shows 6L6 pair push Pull amp, 8 ohm output. T3778 noted as 35 watt 5000:8 impedance ratio. Seems eBay wont let me display links anymore, so try Googling Angelfire, T7738, Supro Thunderbolt.

3" length. Holes about 2.5 inches on center. Weight approx. 3.5 pounds. All leads exceed 5".

Ohms checked for continuity check on my Fluke meter: 

• Secondaries: .4 on one, .3 on second Transformer

• Pri-Pri: 133 on one; 149 on second

• CT to Primaries: 79/55 on one; 70/79 on second.

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    • Charvel
    • Supro
    • Bugera
    • JHS
    • Ernie Ball Music Man
    • Celestion
    • SKB
    • Gibson Accessories
    • On-Stage Stands
    • Eventide
    • Two Notes
    • Planet Waves
    • D'Addario
    • Bogner
    • Kala
    • MONO
    • LR Baggs
    • Xotic
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    • Zoom
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