Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: stratomaster on February 06, 2025, 07:16:12 am
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I've been coming across the problem quite a bit recently where the insulation on the center connection of the BF/SF repro switches breaks down and causes the reverb or tremolo to go intermittent. It's easy enough to snip, strip, and reterminate--but that's kicking the can down the road.
I'm tempted to rewire the switch with XLR cable and a Y boot to some nice right angle RCA plugs, but I wanted to ask what others are doing when they encounter this before going down this rather pricey upgrade path.
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That plug itself seen to be a problem, it looks like to have a sharp edge in the inside where the cable is, what if open that end a little bit so the cable dont get cut? I mean the end of the plug is bent inwards, bent it outwards, make it straight.
here some interesting plug https://smitherstransformadores.lojaintegrada.com.br/conector-rca-plug-90-graus
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Most replacement Male RCA connectors don't have the sleeve extension on them. https://www.tubesandmore.com/products/rca-plug-switchcraft-straight-2-conductor-type-3501mx
thus eliminating cutting into the cable. Solder to the shell externally. These are like the vintage Fender plugs.
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Most replacement Male RCA connectors don't have the sleeve extension on them. https://www.tubesandmore.com/products/rca-plug-switchcraft-straight-2-conductor-type-3501mx
thus eliminating cutting into the cable. Solder to the shell externally. These are like the vintage Fender plugs.
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I'm tempted to rewire the switch with XLR cable and a Y boot to some nice right angle RCA plugs, but I wanted to ask what others are doing when they encounter this before going down this rather pricey upgrade path.
You don't want to use standard XLR/mic cable. The fender cable has one shielded conductor and one un-shielded conductor. The shield on the reverb wire keeps noise from the tremolo from bleeding into the grid of the reverb recovery. Standard mic/xlr type cable is 2 conductors in one shield.