[Heathkit] SB-610 Resistor & Mica

carl lowry l_carlj at bellsouth.net
Mon Jun 19 20:02:21 EDT 2006


Boy i've got a doozer to fix up.
Some fried parts.
How do they do it ?
A  33k  1 watt resistor coming off the coax connector on the back of the unit
with a 7.5pf mica strapped across it going to pin # 3  6BN8 tube in the Clamper circuit (V1C).
Both Fried.. Smoked .... perhaps somebody tried a couple kws going into it..
So looking on the Mouser website for replacements of the 33k & 7.5pf.
Mouser  doesn't have the standard old Carbon Composit resistor in that value,
but does have a " Ohmite brand - ceramic composition" resistor.
Direct subsititute or keep looking ?
Whats the difference ?
Mouser doesn't have a 7.5pf mica but does have a 10pf mica - closest they have.
10pf suitable or keep looking & suggestions ?
Thanks guys..
73s
Carl, k4zrd


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