slor Posted September 7, 2013 Share Posted September 7, 2013 Hi there, I have a power transformer marked "TF-104P," which schematics tell me was originally in a GA-25 RVT. The secondary puts out 320-0-320, but does anyone have a rating for the heater secondary? I know it's 6.3V, but anyone have current info? Wondering if it'd be safe to run an EZ80/EZ81 off of it.... Many thanks! Quote Link to comment Share on other sites More sharing options...
8417 Posted September 10, 2013 Share Posted September 10, 2013 TF-104-P is from a 1965-67 GA-35-RVT "Lancer" amplifier. What circuit are you trying to build? The Lancer had a plethora of tubes in it (2-7591, 2-6EU7's, 2-12AU7's and a 12AX7) so you can pretty much figure out the current capabilities by adding the current draw from those 7 tubes together, and comparing it to the current draw of your design. However- vintage Gibson transformers don't grow on trees- I would think hard before using it in a scratch build. Hammonds and Edcors are readily available. That transformer could help bring back another Lancer or an Epiphone EA-16-RVT Regent. PM me if you think twice about using it. Quote Link to comment Share on other sites More sharing options...
glp Posted September 9, 2019 Share Posted September 9, 2019 What are the Power Transformer specs for this TF-104-P? Ive got an GA35RVT with a shorted PT. need to find a replacement. Quote Link to comment Share on other sites More sharing options...
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