moogmymellotron
New member
hey guys
i had a few questions regarding a bit of kit i acquired from a fellow musician. its a european tube based 4 track recorder made by Truvox, a consumer home model.
the unit is in really good cosmetic condition and i felt a lilttle obligated to get it running. The unit powers up, tubes glow, passes audio and records fine the heads have very minimal wear all rubber in good shape. the issue w it however lies in the power tranny. changing its voltage input steps down the tranny BUT the motors do not run at their appropriate speed. hitting play the machine gradually speeds up to speed, ff starts off slow and rwd is pretty bad. i recapped the run capacitors a few weeks back and just kind of forgot about it until now. im assuming its the 50-60hz conversion thats bugging out the machine??? since i left the machine to run at 220 and use an external step down tranny w the unit and performance was definately enhanced though a few issues still remained ( need to replace the start cap)
any advice would be great regarding that...BUT
ive aslo been thinking about turning the recorder in a tube mic pre. i feel that would be easier for me to do since i understand the circuitry for that better than i get trying to suss out a possible motor issue.
your opinions, advice, all appreciated. thanks.
i had a few questions regarding a bit of kit i acquired from a fellow musician. its a european tube based 4 track recorder made by Truvox, a consumer home model.
the unit is in really good cosmetic condition and i felt a lilttle obligated to get it running. The unit powers up, tubes glow, passes audio and records fine the heads have very minimal wear all rubber in good shape. the issue w it however lies in the power tranny. changing its voltage input steps down the tranny BUT the motors do not run at their appropriate speed. hitting play the machine gradually speeds up to speed, ff starts off slow and rwd is pretty bad. i recapped the run capacitors a few weeks back and just kind of forgot about it until now. im assuming its the 50-60hz conversion thats bugging out the machine??? since i left the machine to run at 220 and use an external step down tranny w the unit and performance was definately enhanced though a few issues still remained ( need to replace the start cap)
any advice would be great regarding that...BUT
ive aslo been thinking about turning the recorder in a tube mic pre. i feel that would be easier for me to do since i understand the circuitry for that better than i get trying to suss out a possible motor issue.
your opinions, advice, all appreciated. thanks.
