Re: 810 Tubes for Audio Modulation ? ? ?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Steven Ward by way of Terry Fritz <teslalist-at-qwest-dot-net>" <srward16-at-hotmail-dot-com>

Dan,

I would just use the 810s.  With my single 810, i got about 16" sparks, 
though it used staccato to reduce heating.  They are actually pretty tough 
tubes.  The graphite plate really helps them out.  Then again, the 833As 
will take more voltage and more power overall.  Either way, im sure you 
will get some loud audio in this manner!  And maybe you can still get a 
small 5" spark ;)

Steve Ward


>From: "Tesla list" <tesla-at-pupman-dot-com>
>To: tesla-at-pupman-dot-com
>Subject: 810 Tubes for Audio Modulation ?  ? ?
>Date: Sun, 25 May 2003 10:34:35 -0600
>
>Original poster: "by way of Terry Fritz <teslalist-at-qwest-dot-net>" 
><dhmccauley-at-spacecatlighting-dot-com>
>
>After a full day of experimenting with a variety of grid modulation
>techniques, i'm ready to scrap it and go for some serious high side (plate
>modulation) to get some decent audio
>quality for my dual 833A VTTC.
>
>I already have a nice RCA modulation transformer with built in spark gaps
>etc... (which I think was even designed for the 810 tubes) but was wondering
>if the 810
>is a decent tube to begin with or should I invest in some 833 tubes???  I
>already have (2) good 810 tubes that were given to me.  Obviously i wouldn't
>be able to run
>at the power levels the 833A VTTC could handle, but i would run at lower
>power levels.
>
>What are your thoughts?
>
>Thanks
>
>The Captain