Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: mebond11 on November 12, 2020, 06:50:28 am

Title: Re: Adding 1-tube reverb
Post by: mebond11 on November 12, 2020, 06:50:28 am
Greetings...I am building the 5879 Blues Amp, and would like to boost the reverb by substituting a 6BM8 circuit for the 12AX7 circuit.   Do you think I can drop in the attached 6BM8 circuit from the BluezMeister TremVerb?  Looks like it draws a lot more current.   I read through the whole thread and seems there isn't a ton of 6BM8 experiences although there are a couple, and also seemed some debate about it.   As always, thanks so much for any help!
Title: Re: Adding 1-tube reverb
Post by: tubenit on November 15, 2020, 03:50:46 pm
Did you see this thread on a capacitor driven 6BM8 reverb?

https://el34world.com/Forum/index.php?topic=24829.0

With respect, Tubenit
Title: Re: Adding 1-tube reverb
Post by: mebond11 on November 15, 2020, 10:49:05 pm
Thank you, I did not see that thread but read through it.   I already have the transformer and the low impedance fender style tank, so I will need the transformer.    Did you ever build the 6BM8 circuit with the transformer?   It looks like if I use the Hammond transformer I will need to keep the supply voltage at around 200 volts to avoid exceeding the plate dissipation limits of the tube.

I could make it easy on myself and do the 12ax7 one tube reverb but I was looking to strengthen it.