12 volt plate tubes ... remember those?

[Neil McKie]

  ... forwarded from ... 

>__________________________________________________________________
>
>                      THE CGC COMMUNICATOR
>
>                            CGC #757
>
>                   Thursday,  August 24, 2006
>
>                             ________
>
>                 Robert F. Gonsett, W6VR, Editor
>                      <r.gonsett at ieee.org>
>
>    Copyright 2006, Communications General® Corporation (CGC)
>
>__________________________________________________________________
>
>
>******************************************************************
>                           RANDOM NOTES
>******************************************************************
>
>  HD RADIO "CONVERTERS" NEXT
>
>  According to Radio Currents Online, the HD Digital Radio
>Alliance is working to release an HD Radio converter that can
>be added to existing car stereos to receive HD Radio signals.
>The alliance hopes to release the converter boxes in November
>and, through promotional offers, may "almost give them away."
>
>  The HD converter reminds us of the Gonset FM tuner for
>cars and trucks in the late 50s.  The Gonset 3311 was the
>"first commercially available car FM converter" according to
>somerset.net and used near-instant-on "space charge" vacuum
>tubes that required only 12VDC for the B+ supply -- pretty
>revolutionary stuff at the time.
>
>  Radio Currents Article (scroll to "HD Radio Alliance..." story):
>  http://beradio.com/currents/radio_currents_081406/index.html#npr
>
>  About Space Charge Tubes:
>  http://www.duntemann.com/12vtubes/12vtubesindex.htm
>
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>
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