[R-390] RE: 26Z5W replacement
Michael Murphy
mjmurphy45 at comcast.net
Mon Oct 24 20:37:53 EDT 2005
Yeah Drew, I figured that the current might be the gotcha. Funny how that
tube has almost an exact pinout to work though.
Gosh I forgot about the audiophiles. Let's start a thread that touts 832's
as max headroom push-pull preamplifiers. "That's some sweet hamonically rich
crossover distortion baby" (obviously caused by tungsten-starvation after
being used in a red hot SCR-522 over North Africa and stored in a hayloft
for 60 years).
Mike
----- Original Message -----
From: "Drew Papanek" <drewmaster813 at hotmail.com>
To: <r-390 at mailman.qth.net>
Sent: Monday, October 24, 2005 6:20 PM
Subject: [R-390] RE: 26Z5W replacement
>
>
> Michael Murphy wrote:
>
> >Is there a possibility that a 12BH7 dual triode could be wired as a dual
> >diode? I'm not sure about the current capability but it has some good
power
> >specs and should have the reverse PIV because of its service as a
vertical
> >deflection amp.
>
> The 12BH7 hasn't enough emission (current capability) to use for a 26Z5w
> replacement. Besides, the 12BH7 has become a high priced
audiophile-coveted
> item, whereas the 12BW4 is desired by almost no one and hence is cheap.
>
> The online article about rewiring the power supply rectifier sockets to
> accept the 12BW4 also mentioned another suitable tube, the 25CT3.
>
> Drew
>
>
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