[Amps] Dual tetrode in grounded grid
Glen Zook
gzook at yahoo.com
Thu Feb 12 15:56:21 PST 2009
I am still going to need at least 6 dB attenuation and that would mean at least 75 feet of RG58/U at a cost of just over 30 cents a foot. Compare that with resistors which would total well under a dollar. Also, there is plenty of room inside the linear cabinet to put even a very large resistor network let alone one made from 2 watt resistors. However, not enough room for 75 feet of RG58/U coiled up.
No brainer!
Glen, K9STH
Website: http://k9sth.com
--- On Thu, 2/12/09, Carl <km1h at jeremy.mv.com> wrote:
I thought this was for 222 mHz? RG-58 loss is about 8dB per 100' and you dont need that much attenuation. If you want short try RG-174 or RG-178.
I had to go the other way with my HA-2 and HA-6 since I am driving them with about 10 milliwatts out of a pair of TS-830's. Added a 2N5109 Class A buffer amp which tickles the 12BY7's just fine.
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