Good point. Thanks for the advice.

Jeremy

Ron: I found those large green and yellow wires; they are all over the place. There are three connected together in one spot on the power supply cabinet. I checked all connections, and all seem pretty secure. While I didn't loosen any, there is no observable corrosion on any of them...so I assume al...

Ron:

Further to my last email, do you have any idea where I might find this common ground lug? Would it be inside the amp or power supply cabinets, or outside of these - attached to the floor of the cabinet, back wall, side wall, etc.?

Thanks,

Jeremy

Thanks for all your help, Pete. Much appreciated.

Ouch. An amp rebuild sounds complicated (and expensive!)...especially for someone not electronically-inclined like myself. Sounds like a job for a service technician... I was hoping that it may be something simple for me to check/troubleshoot. I will check for a common ground lug, as you've suggeste...

Hello again: There's always been a noticeable hum emanating from my Rockola 445 when it turns on and plays records. It's not so bad that it drowns out the sound of the records, but it is noticeable. I think the right lower speaker is contributing to the hum; I checked the other three speakers (lower...

LOL

I noticed the abundance of rivets...dear God - they really didn't want things coming apart easily, did they? Fortunately for me I didn't have to resort to prying any riveted components apart.

Since your last post I was able to remove part #22. As you said...easy; simply remove the c-clamp and lift off...no more 33 1/3 speed. I am so happy right now...I think I'll load my jukebox up with small-hole 45s. Ebay UK here I come! Thanks to everyone for your input and suggestions; because of you...

George: You're a genius! Thank you, thank you, thank you!! My jukebox has successfully played it's first small-holed 45 (at least since I've owned it). With a little bit of pressure and a trusty pair of needle-nosed pliars, I was able to get the sliding slotted part's rod into the Bell Crank's slot....

There is a small rod sticking down from what we're calling the"sliding thing with long slot". This goes into the oval slot of the #(36) bell crank. The key is if that rod is there or broke off maybe? There are two rivet looking points on the sliding thing, the rod should be under the one ...

Thanks, George. Reading back through everyone's posts, I notice that Ron and Pete are both suggesting (If I am reading correctly) that the long rod - part #38, the Drive Rod - and part #36, the Bell Crank - are somehow involved in the movement of the sliding slotted part. Unfortunately, I can't see ...

I will try to take a picture of my turntable this evening. And attach it to this post. Pete Thanks Pete...I'd appreciate that. Too bad you couldn't post a video of the turntable off, showing what happens during the selection and rejection process...are videos permitted to be posted on this forum?

George: Thanks for the replies. I have some follow-up questions/comments to your comments...see below Remove lever #22 That part starts the whole ball rolling to change to 33 1/3. I thought lever #22 was what caused the sliding slotted part to move. Does it just engage the change from 45 to 33 1/3 r...

Tell me about it! Further to my last response and your most recent comments, I played around with parts 17/21 - that sliding thing with the long narrow slot. When the tone arm is engaged and the idler spins, I am able to push on the Sensor Riveting Assembly (22) which causes the sliding thing to mov...

Ron: I've done what you suggested; removed the turntable, removed a record, made a selection and watched what happened. Unfortunately nothing is happening immediately under the turntable; the only movement is the idler (which you would expect). There is something happening under the turntable mounti...