>Is there any mileage in making a homebrew glitch resistor for use in series
>with the B+ using Nicrome wire on a 1 inch diameter ceramic former. It seems
>to me that it should be fairly easy to make one with the necessary
>resistance,current and voltage breakdown characteristics.
>
>Has anyone done it? The commercial equivalents are really expensive here in
>the UK and we seem to see very few surplus nowadays.
>
? I would build one out of groved Delrin or ABS tubing and Ni-Cr
resistance wire. 12' of #22 Ni-Cr should be about right.
However, we buy glass-coated wire-wound resistors for glitch service and
the price per 250 is just over $1US each. One 10-0hm, 10W unit will
safely discharge c. 30uF @ c. 2900v. For higher V, we put more in
series. For tetrode-with-handles glitch resistors, which need to be able
to carry 4 to 6 amperes and discharge c. 2kJ of filter C, a real
pulse-rated R would be better, despite the added cost.
>
cheers, Conrad
- R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K,
www.vcnet.com/measures.
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