[ARC5] Somebody is Still Building 832's?

Bob Groh bob.groh at gmail.com
Wed Mar 3 10:39:01 EST 2021


Well, ignoring the totally bogus claims, having an 832 'anything' sure as
heck looks cool.  I've got the 832's in my stash and having some form of
'art' using them would be so neat. Not even sure I would power it up - I
have always wanted to try a few LED's hidden close to the base and shining
up into the bulb. Put that on a nice walnut base with a sexy variable cap
and dial - now there is some serious fun!  And, yes, I am being serious
here!

73
Bob Groh, WA2CKY

On Wed, Mar 3, 2021 at 9:28 AM Dennis Monticelli <
dennis.monticelli at gmail.com> wrote:

> A colleague and I did an armchair analysis of the 832 in the stereo
> headphone driver product.  The ridiculously low plate voltage (12V)
> translates into very low though measurable gain with a high output Z.  Gain
> is not really necessary for this application but driving 32 ohms is.  The
> circuit also uses a venerable op amp with 600 driving capability.  So the
> circuit is probably using the 832 for the glowing input stage and the op
> amp for the driver (after taking a loss via a series output resistor to
> avoid driving the op amp into current limit).
>
> Nobsound makes other great stocking-stuffer audio tube products.  You KNOW
> you WANT one so you can plug in a real NOS 832 for audiophool bragging
> rights!
>
> Get yours today!!
>
>
> https://www.amazon.com/Nobsound-Little-Vacuum-Headphone-Amplifier/dp/B07R7PL7YM
>
> Dennis AE6C
>
> On Wed, Mar 3, 2021 at 5:22 AM Doran Platt <jeepp at comcast.net> wrote:
>
>> I see these tubes for less than $15 each.  Maybe the word is not out to
>> the (with all due respect) Audio Gnomes, yet.
>> K3HVG
>>
>> >
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