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    RCA 5963 low gain board



    Posts : 21
    Join date : 2017-05-20

    RCA 5963 low gain board

    Post by rymi on Thu Aug 17, 2017 12:13 pm

    Anyone ever try RCA 5963 with low gain vta st70?

    I have a pair of grey ladder plate and a single black ladder plate.

    Whats the difference between the two? And are they considered audio tubes?

    Posts : 1931
    Join date : 2012-05-23
    Location : Wallace, Idaho

    Re: RCA 5963 low gain board

    Post by deepee99 on Thu Aug 17, 2017 12:33 pm

    Bob Latino

    Posts : 2639
    Join date : 2008-11-26
    Location : Massachusetts

    Re: RCA 5963 low gain board

    Post by Bob Latino on Fri Aug 18, 2017 4:11 pm

    I totally agree with deepee99 here .. That link gives a pretty accurate description of 5963 tubes. Any of the USA made 5963, 5814 and 6189 (12AU7 type) tubes are better built, will last longer and will usually sound better than most modern 12AU7 tubes. RCA, GE and Sylvania made millions of these (5963's) for the USA military years ago and there is still good stock on these on Ebay and other web sites. Because of the fairly good supply, these tubes can still be found at reasonable prices. Right now I have here some Sylvania 5963's that I am shipping to customers that want a tube set with their amp kits.


    Posts : 488
    Join date : 2012-11-30
    Location : SF Bay CA

    Re: RCA 5963 low gain board

    Post by arledgsc on Mon Aug 21, 2017 11:50 am

    Today I plugged in some Beckman (Sylvania) long plate 5963s into the phase inverter slots on my ST-120. Nice bass and vocals plus smooth highs. An eye (ear?) opening experience!

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    Re: RCA 5963 low gain board

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