Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: rake on April 29, 2018, 01:45:15 pm

Title: Prinston Rev II Boost
Post by: rake on April 29, 2018, 01:45:15 pm

On the Princeton Rev II Boost schematic  there's 2 optocouplers # 013556

http://el34world.com/charts/Schematics/files/fender/Fender_princeton_rev_II_boost.pdf

Anyone know where to find them or suitable replacements?

Thanks in advance

Title: Re: Prinston Rev II Boost
Post by: sluckey on April 29, 2018, 02:16:59 pm

http://www.stratopastor.org.uk/strato/amps/twoseriesfenders/priischematicwiringpartslist.pdf

Title: Re: Prinston Rev II Boost
Post by: rake on April 29, 2018, 02:53:36 pm

looks like this'll do the trick

https://www.tubesandmore.com/products/optocoupler-vactec-channel-switching

thanks sluckey

Title: Re: Prinston Rev II Boost
Post by: sluckey on April 29, 2018, 03:39:00 pm

 :thumbsup:

Title: Re: Prinston Rev II Boost
Post by: MFowler on May 01, 2018, 05:00:55 am

Just a reminder Doug Hoffman sells those vactrols, I bought 4 from Doug.

Title: Re: Prinston Rev II Boost
Post by: rake on May 01, 2018, 06:38:56 am

Quote from: MFowler on May 01, 2018, 05:00:55 am

Just a reminder Doug Hoffman sells those vactrols, I bought 4 from Doug.

I looked in Doug's store first and didn't see them.  :dontknow:

Title: Re: Prinston Rev II Boost
Post by: sluckey on May 01, 2018, 06:57:52 am

If you want some better get them while you can. They are no longer being manufactured.

Title: Re: Prinston Rev II Boost
Post by: mresistor on May 02, 2018, 11:25:21 am

These also might be suitable 
http://www.newark.com/advanced-photonix/nsl-32sr2/optocoupler-resistor-2000v/dp/71C0279?mckv=sD4sYxDhx_dc|pcrid|81515569341|plid||kword||match||slid||product|71C0279|&gross_price=true&CATCI=pla-148796184501&CAAGID=20376568221&CMP=KNC-GUSA-GEN-SHOPPING-71C0279&CAGPSPN=pla&gclid=EAIaIQobChMIxrvck7fn2gIVQ7bACh0QVgH4EAQYBCABEgJvZ_D_BwE&CAWELAID=120185550001284197 (http://www.newark.com/advanced-photonix/nsl-32sr2/optocoupler-resistor-2000v/dp/71C0279?mckv=sD4sYxDhx_dc|pcrid|81515569341|plid||kword||match||slid||product|71C0279|&gross_price=true&CATCI=pla-148796184501&CAAGID=20376568221&CMP=KNC-GUSA-GEN-SHOPPING-71C0279&CAGPSPN=pla&gclid=EAIaIQobChMIxrvck7fn2gIVQ7bACh0QVgH4EAQYBCABEgJvZ_D_BwE&CAWELAID=120185550001284197)