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I'm looking to make my parts list for a TVC and was wondering about switches. I plan on making a TVC w/ balanced and unbalanced connections.I talked to a distributor and he asked what type do I want: 2-2-23 (2 channel, 2 deck, 23 stop), etc. Then I noticed that some have four decks(for audio).
I get the channel and stop part, but the number of decks is a little confusing. Are four deck switches for balanced operation?
Which would work best with an S&B TX-102 tranni or Sowter 9335?
Follow Ups:
Nobody else has stepped up; so, I'll take a crack at this.The 4 deck switch would be used either for a stereo "L" pad stepped attenuator or a balanced stereo series wired stepped attenuator, when resistive voltage dividing level control is used.
Since transformer based level controls are wired much like series wired resistive attenuators, the 4 deck switch would be used to assemble a balanced stereo TVC.
Have you given thought to how you would control channel balance, should you choose to build a balanced stereo TVC?
Eli D.
You do not need four decks unless you have 4 transformers. Both S&B TX102 and Sowter 9335 can be used in balanced configuration so you need only two of them.Currently I am wiring 2 Sowter 9335s using Shallco "D" switch, 2 decks, single pole, 2 positions, shorting.
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