PAS 2 / PAS 3 Identity

May sound silly or could be obvious but how do you tell the difference between the later silver faced PAS units.

I have one F/S on Epay and may have listed it wrong

http://www.ebay.com/itm/141687481055?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

Also what is a Scott LM-35 multiplexer and why do some people want them?

Thanks for any help.

Kind regards

Scott

Thanks Peter

Any clue on how to identify a 3X.

On the back it says only PAS.

Again thanks for the help.

Scott

Scott -- the LM-35 is a FM Multiplex unit that is used to convert a Mono FM Tuner to FM Stereo unit. Originally intended for Scott Mono Tuners, but can used on other Mono Tuners (brands).
Stew

Bob Latino wrote:The PAS-3X has a flat spot near the center of the bass and treble knob's rotation. If you turn both the bass and treble knobs slowly all the way from one end to the other, you can usually feel that "null" position. If the bass and treble knobs have the same feel all the way through their rotation then you have a PAS-3.

Bob

Another way to tell: The PAS-3's tone control knobs will rotate through the same size arc as the balance control.

The PAS-3x tone control knobs have a visibly lesser arc of rotation.

Another indicator: If you hear a thump or pop through your speakers when you rotate the bass or treble controls off the 12 o'clock position--you have a PAS-3X

The PAS 3X tone controls do NOT have a mechanical detent at center. There are a few external clues, however, along with obvious internal differences. Here's an article that describes how to tell if it's a PAS 3 or 3X:

http://audioregenesis.com/documents/Dynaco%20PAS%203%20or%203X.pdf

As far as "originally" being a PAS 2 or PAS 3/3X - The PAS 2 is usually typified by the brass faceplate, however Dynaco did supply upgrades kits for both the faceplate, and later, 3X tone controls, so any particular PAS, of unknown background, may have started life as a PAS 2, or 3, and been upgraded at some point.

audioregenesis wrote:The PAS 3X tone controls do NOT have a mechanical detent at center. There are a few external clues, however, along with obvious internal differences. Here's an article that describes how to tell if it's a PAS 3 or 3X:

http://audioregenesis.com/documents/Dynaco%20PAS%203%20or%203X.pdf

As far as "originally" being a PAS 2 or PAS 3/3X - The PAS 2 is usually typified by the brass faceplate, however Dynaco did supply upgrades kits for both the faceplate, and later, 3X tone controls, so any particular PAS, of unknown background, may have started life as a PAS 2, or 3, and been upgraded at some point.

Very nice Article.

With compliments.

Tiziano