Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: mresistor on May 09, 2022, 03:37:42 pm

Title: Non grounded reverb cables
Post by: mresistor on May 09, 2022, 03:37:42 pm
I was on the bay today surfing and spotted this.  It's a pic of a converted PRRI and I noticed that the reverb pan cables appear to be ungrounded where connected to the back of the chassis.  ??  Strange.  The cables also look like RG316. Strange clamps on the ends where the shield seems to end. Doesn't seem to me to be a very good way to terminate the cables.





Title: Re: Non grounded reverb cables
Post by: sluckey on May 09, 2022, 03:59:14 pm
It's a very good RCA plug. The strange clamps are part of the plug. Shield is soldered to that restrain clamp. I used the same plugs on my revibe. Couldn't find a pic of the actual RCA plug but look at this pic and imagine the shield restraint bent 90°. Same idea.

(https://www.tubesandmore.com/sites/default/files/uc_products/w-sc-280_exploded_view1_1.png)


Title: Re: Non grounded reverb cables
Post by: mresistor on May 09, 2022, 04:04:37 pm
Ahh yes   I see it now..  those metal shield clamp parts are connected to the plugs.   Wonder who makes those plugs?
Title: Re: Non grounded reverb cables
Post by: sluckey on May 09, 2022, 04:30:30 pm
Someone should have them. They're not obsolete. Here's a better pic...