All four inputs were not receiving a signal on my 65 Twin Reverb RI, but I could hear the floor noise of the amp. I tried tapping on the tubes with a plastic chopstick and could hear a loud feedback noise when tapping on the reverb tube. I removed the amp from the cabinet and discovered that a pad had lifted from the reverb RCA connector circuit board. A wire was floating in the air and was not connected to the board. I made the repair and the amp is back to working properly again.
Thanks for the PSA on the Fender HR/RI speaker cables etc. My Pro Jr IV is starting to make “extraneous” noises… Appreciate your videos and expertise. Cheers!
Lyle, I’ve got to get my 65’ Fender Deluxe Reverb RI over to you for an upgrade. I live in Arkansas and will connect with you soon. You’re the best and I wouldn’t trust anyone else to do the work you do.🇺🇸
That's crazy to put the heater balance resistors on the board. One known benefit of using those R's versus having a CT transformer is that they can burn up if there is a heater-to-cathode short in the tube lineup. So you replace 2 * 8 cents resistors versus the power transformer. But as usual, stuffing those resistors onto the board costs zero versus hand-soldering them hanging out in the air somewhere. I've always thought that placing them on the pilot lamp holder as on old Fender amps was kind of goofy, but it worked many thousands of times, so what do I know?
I C that you use Neutrik connectors......I use those all the time.......also use Mogami cable (not cheap).......all this worth the $$ in the long run !
I have been close to getting a 65 Princeton RI, now I am definitely NOT getting one. I can't imagine how sad a young person would be, having put money aside say over a year to buy himself a "good" amp, only to have it fail so bleeping darn soon.
Well done. I like the way you explain things. Am I understanding you that you are going to add a Mid range EQ knob to this amp? If yes, where would you put it? That would make a very interesting video if you are indeed adding a Mid Range Pot....Thanks. Phil NYC Area
A friend of mine recently lent me his RI Fender amp which had exactly the same problem with the speaker lead. Only problem was that when I found this, on and sorted it out, I found the amp has a nasty ear grinding hum. Needs to see a tech, but here in Sheffield UK finding a good tech is easier said than done.
It's not a spark, it's the tremolo Light Dependent Resistor. That's often described as the "roach", because of the 4 legs sticking out from the rubber covering.
I could tell just by the thumbnail and video title that the shitty molded plastic speaker cable developed an internal break. First thing I check with any of the '65/'68 reissues and the Hot Rod series that comes in with an intermittent/no output issue.
I loved fixing amps/guitars made pre 80s era !! Now I'm a retired tech etc. who views today's electronics and build quality of amps/guitars a joke !! Why install a Mid control when an equalizer can do so much more ??
Mr. Psionic, I've learned a lot from watching your videos. I have a DRRI that I recently noticed has a crackle sound in the vibrato channel only when there's signal. No other unusual noises. Crackling sound is only in the Vibrato Channel. Normal channel seems perfectly fine. I've tried swapping tubes but have not been able to get anything to change. Any ideas? th-cam.com/video/VSDauyaxy0U/w-d-xo.html
Dude. There are, what, four seconds of playing in this video? I wasn't thinking about what I was playing. I was just checking the sound. Every player has autopilot riffs and bits they play. I won't apologize for that.
@@PsionicAudio No need to apologize not expecting one. Just annoying as hell. Again I love the channel, just not that same annoying lick all the time. 👍
I just bought a brand new '65 Deluxe Reissue and the vibrato channels do not work at all. Normal channels are fine. What a disgrace brand new out of the box and it's broken. I also noticed a strong radio signal coming thru the amp. Not happy ☹
I really love the way you go about future proofing these amps.
All four inputs were not receiving a signal on my 65 Twin Reverb RI, but I could hear the floor noise of the amp. I tried tapping on the tubes with a plastic chopstick and could hear a loud feedback noise when tapping on the reverb tube. I removed the amp from the cabinet and discovered that a pad had lifted from the reverb RCA connector circuit board. A wire was floating in the air and was not connected to the board. I made the repair and the amp is back to working properly again.
Thanks for the PSA on the Fender HR/RI speaker cables etc. My Pro Jr IV is starting to make “extraneous” noises… Appreciate your videos and expertise. Cheers!
Lyle, I’ve got to get my 65’ Fender Deluxe Reverb RI over to you for an upgrade. I live in Arkansas and will connect with you soon. You’re the best and I wouldn’t trust anyone else to do the work you do.🇺🇸
Did that work for you lol?
Always great to start my day with Psionic vids. Always learn stuff.
Thanks! many times over.... I'm learning a ton from your vid's. Right before trying to build my first Princeton Kit.
Wow...... Thanks for the heads up on the speaker cables. Nice to learn something new.
Great content and very instructive..keep them coming.
That's crazy to put the heater balance resistors on the board. One known benefit of using those R's versus having a CT transformer is that they can burn up if there is a heater-to-cathode short in the tube lineup. So you replace 2 * 8 cents resistors versus the power transformer. But as usual, stuffing those resistors onto the board costs zero versus hand-soldering them hanging out in the air somewhere. I've always thought that placing them on the pilot lamp holder as on old Fender amps was kind of goofy, but it worked many thousands of times, so what do I know?
Cheers Lyle... Thanks again!
I C that you use Neutrik connectors......I use those all the time.......also use Mogami cable (not cheap).......all this worth the $$ in the long run !
I have been close to getting a 65 Princeton RI, now I am definitely NOT getting one. I can't imagine how sad a young person would be, having put money aside say over a year to buy himself a "good" amp, only to have it fail so bleeping darn soon.
Don't even tell me about it. I bought mine on december 27th, and today it stopped working. Trying to get it to work, without having a panic attack...
I bought a DRRI in 2005, no problems at all. I changed tubes once, only because I wanted to. If you like it don’t be afraid to buy it.
Well done. I like the way you explain things. Am I understanding you that you are going to add a Mid range EQ knob to this amp? If yes, where would you put it? That would make a very interesting video if you are indeed adding a Mid Range Pot....Thanks.
Phil
NYC Area
Thanks and yes. You'll see it soon.
@@PsionicAudio I'll look forward to it. Thanks...
Phil
NYC Area
A friend of mine recently lent me his RI Fender amp which had exactly the same problem with the speaker lead. Only problem was that when I found this, on and sorted it out, I found the amp has a nasty ear grinding hum. Needs to see a tech, but here in Sheffield UK finding a good tech is easier said than done.
Contact Roland Lumby in Manchester. Tell him I sent you.
@@PsionicAudio Thanks for that, much appreciated 🙂.
Is that black part on the left side of circuit board supposed to spark like that? @11:00
It's not a spark, it's the tremolo Light Dependent Resistor. That's often described as the "roach", because of the 4 legs sticking out from the rubber covering.
@@jaythorne6400 Interesting! Thank you for explaining it to me.
Utah Coil became Pyle over 30 years ago.
I could tell just by the thumbnail and video title that the shitty molded plastic speaker cable developed an internal break. First thing I check with any of the '65/'68 reissues and the Hot Rod series that comes in with an intermittent/no output issue.
I loved fixing amps/guitars made pre 80s era !! Now I'm a retired tech etc. who views today's electronics and build quality of amps/guitars a joke !! Why install a Mid control when an equalizer can do so much more ??
Yes. An eq pedal is 10x better than any amp passive tone controls. Just give me a volume control. Most amps are full of gimmicks.
Mr. Psionic, I've learned a lot from watching your videos. I have a DRRI that I recently noticed has a crackle sound in the vibrato channel only when there's signal. No other unusual noises. Crackling sound is only in the Vibrato Channel. Normal channel seems perfectly fine. I've tried swapping tubes but have not been able to get anything to change. Any ideas? th-cam.com/video/VSDauyaxy0U/w-d-xo.html
More proof that nothing is made well anymore. The nuts aren't even tightened properly at the factory, what a joke.
You might consider learning how to reply to your emails.
Love the channel but I can’t stand hearing that same guitar lick all the time. No disrespect meant just being honest.
I disagree. The same lick is useful to compare other amps in other videos.
Dude. There are, what, four seconds of playing in this video? I wasn't thinking about what I was playing. I was just checking the sound.
Every player has autopilot riffs and bits they play. I won't apologize for that.
@@PsionicAudio No need to apologize not expecting one. Just annoying as hell. Again I love the channel, just not that same annoying lick all the time. 👍
@@kookoogearkook Not a lick channel.
I just bought a brand new '65 Deluxe Reissue and the vibrato channels do not work at all. Normal channels are fine. What a disgrace brand new out of the box and it's broken. I also noticed a strong radio signal coming thru the amp. Not happy ☹