Check out all the cool stuff in our
REVERB STORE
CLICK HERE

Hello...

It looks like you are visiting our site on a browser that is really old. Unfortunately, this means you can't get the full experience. It'd be awesome if you could upgrade to a modern browser, especially Chrome and Firefox as that is the best out there right now.

Copyright 2014. All Rights Reserved.

Home CCAP_SUB-FW Rectifier Substitution Box
Item Code: CCAP_SUB-FW
CCAP_SUB-FW Rectifier Substitution Box Item Code: CCAP_SUB-FW

CCAP_SUB-FW Rectifier Substitution Box

  • Use: Fullwave (SS or Tube) rectifier substitution.
$41.00

Fullwave Rectifier Substitution Box, Variable from 5Y3GT to SS Recto (no sag).

Features
Technical Details
Reviews

Details

OK, I admit it. You can calculate circuit values until the cows come home but sometimes it's so much easier and faster to just dial it in. I've been a ham and involved in engineering for over 35 years, and I gotta tell ya, these are undoubtedly some of the most indispensable tools I have ever had.

Details

The C-Cap Sub Boxes are full wave or full wave bridge rectifiers with adjustable sag so you can emulate a tube rectifier of a certain type in the development of your high voltage circuit. The C-Cap Sub Box is adjustable from a 5Y3GT to a straight SS (no sag) rectifier and everything in between. For instance, if you determine by the setting on the C-Cap Sub Box that your amp sounds best between the setting of a 5V4 and a 5AR4/GZ34, you can use a 5AR4/GZ34 with a power resistor in series to split the difference between the two. The label on the C-Cap Sub Box indicates the approximate resistance between straight SS through and including a 5Y3GT, so you can do the math easily to determine that series resistor value.

This box is about 1/4" taller than our copper cap module since it contains a rheostat. It also has two mounting feet on both ends, the same as the copper cap module. It may be installed in an amp permanently and used as an adjustable-sag rectifier.

The only issue is that the rheostat has a wiper and might move some due to the vibration in a combo amp or in a head sitting on a speaker cabinet. You could experience some slight noise or scratching sound if that occurs.