uberplasma
Registered User
Join date: Oct 2012
21 IQ
#1
Hey everybody
Picked up an old ACE Tone 301 amp for my son and need to retube it, the back cover with the schematics is missing and I can't read the tubes to get replacements and I haven't found anything about this amps tubes on the internet. Anyone know the tubes for this amp?
Cheers
Cathbard
Grumpy Old Tech
Join date: Oct 2009
2,565 IQ
#2
Read what's written on the tubes that are in it.
Gilchrist custom
Yamaha SBG500
Telecasters
Randall RM100 & RM20
Marshall JTM45 clone
Marshall JCM900 4102 (modded)
Marshall 18W clone
Fender 5F1 Champ clone
Atomic Amplifire
Marshall 1960A
Boss GT-100


Cathbard Amplification
My band
Dan_5893
Interdit
Join date: Dec 2009
1,405 IQ
#3
Good Luck. The power tube in that amp is a 50hB26. Incredibly rare tube. You can have the circuit reworked to run a 6L6 though.

The preamp tubes are 12AX7s which are pretty much the most common tube around these days.
uberplasma
Registered User
Join date: Oct 2012
21 IQ
#4
Thanks for the info Dan!! looks like I have a little project now
Cheers!!