Telecaster Guitar Forum - View Single Post - How much does a rectifier effect tone? Can a 5Y3 be a substitute for GZ34/5AR4?

mr. lucky · April 27th, 2010, 04:02 PM

A nice sub for a GZ34 if you want a little more sag and earlier breakup is a 5R4 -- offhand I don't remember the exact specs, but it's a safe replacement for a GZ34/5AR4 as far heater current, with a significantly higher internal voltage drop.

Also makes a pretty good sub for a 5U4GB, similar performance but much lower filament draw.

I don't think I'd put a good old stock 5Y3 in a circuit designed for a GZ34, pretty big gap between them in the output rating-- might not fry immediately, but couldn't be good for it.

April 27th, 2010, 04:02 PM	#5 (permalink)
mr. lucky TDPRI Member Join Date: Mar 2010 Location: asheville nc Posts: 88	A nice sub for a GZ34 if you want a little more sag and earlier breakup is a 5R4 -- offhand I don't remember the exact specs, but it's a safe replacement for a GZ34/5AR4 as far heater current, with a significantly higher internal voltage drop. Also makes a pretty good sub for a 5U4GB, similar performance but much lower filament draw. I don't think I'd put a good old stock 5Y3 in a circuit designed for a GZ34, pretty big gap between them in the output rating-- might not fry immediately, but couldn't be good for it.