[Hallicrafters] HT-32A finals resting current

Jeff jeff at podengo.com
Sat Sep 27 12:21:46 EDT 2014


Does anyone know what the resting current (standby) should be for 6293s 
in an HT-32A?

I recently put solid state rectifiers in the rig, lifting the 5V 
filaments out (original transformer, and I'd like to keep it that way.) 
Obviously voltages are higher throughout, but so far, no problems.

I have a meter on the HV line right now, and have the bias set for about 
52 mA at rest (standby position), 250 mA at 100 watts carrier.  I 
increased the value of the resistor in series with the bias pot (R62) to 
give me more control over the resting current Before doing this, the 
lowest I could get the bias current was around 80 mA.  I'm using the 
50-60 mA range based upon all the rest of my hollow state gear, so I'd 
appreciate anyone's more learned advice.

Jeff
WB3JIH



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