[ARC5] Solid State 6AL5

[Bill Cromwell]

Hi Wayne,

I have not tried that approach for signal diodes. I wonder if there are 
substantial differences between tube and solid state circuits for agc 
detectors, AM detectors, etc. If I remember, when I get time I will 
look. One obvious (to me) difference is the reverse voltage (avalanche) 
and reverse leakage in the solid state devices. That could make a big 
difference in the required circuits.

I have mounted rectifier diodes on octal plugs and directly plugged them 
into sockets in place of 5U4*, 5Y3*, etc power rectifier tubes. 
Discounting the different forward voltage drop in the vacuum devices the 
solid state devices perform as expected. If we pay attention to that 
reverse leakage and breakdown factor it *should* work for signal diodes.

I always look at the ratings of parts 'downstream' from the silicon 
replacement diodes to assure they can tolerate higher voltages. I recall 
a time or two replacing some filter caps that might have already been 
right on the ragged edge.

73,

Bill  KU8H

On 02/05/2018 11:20 AM, Robert  Eleazer wrote:
> Anyone ever try to use a solid state 6AL5, or to make one using solid
> state diodes?  I have couple of solid state ones that I think came from
> Poly Paks.  From what I recall they did not do well when I tried them in
> a circuit.  The same comment applies to 6H6; have you tried a solid
> state approach?
>
> Wayne
> WB5WSV
>
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