SB-102 Plate Current
ALLEN HEIBECK
kj6xh at JUNO.COM
Sat Jul 7 19:32:55 EDT 2001
Fellow Greenies,
What might cause the Plate Current reading to be too high when apparently
everything
is tuned-up and at resonance? Using normal 50-ohm Dummy Load.
Just noticed this today; don't know how long it's been this way.
On 20 and 15 mtrs, Ip indicates about 340 ma. Full scale Ig. Normal
Pout.
10-mtrs also 340 to 350 ma; but it's Ig is low.
The manual says Ip should be about 250 ma.
Bias is apparently right----50ma Ip in the Tune mode with MIC level full
CCW.
Vp is normal: 800vdc. Don't yet know about Screen voltage.
Could poor tracking of the two variable caps for the Driver/Presector do
this?
(But, the belts look OK.)
Would neutralization be a factor here? (No signs of a need here,
however.)
Anyone notice this situation in their rig?
Thanks for ideas/help.
Allen
Rev. Allen, KJ6XH
El Cajon, CA
http://home.earthlink.net/~mattall
Listserver Subscription:listserv at listserv.tempe.gov - "subscribe heath 'name' 'call'"
Listserver Submissions: heath at listserv.tempe.gov
Listserver Unsubscribe: listserv at listserv.tempe.gov - -"signoff heath"
More information about the Heath
mailing list