From: "Lee Bahr" 
Subject: [drakelist] Resistors in Plate Suppressor Chokes


"Lee Bahr"  made an utterence to
the drakelist gang
----------------------------------------------------------------------
I would like to hear from those who ACTUALLY DID rebuild their plate
suppressor chokes.  We all know 2 watt carbon composition resistors are hard
to find.  We hear stories MAYBE carbon film is not the way to go because of
inductance reasons.  We hear metal film resistors may work.  We hear you
PROBABLY should use Ohmite OY ceramic carbon film resistors.  (This makes a
lot of sense to me).

I sure would like to hear from those who ACTUALLY DID try carbon film, metal
film, and of course, the logical choice Ohmite OY ceramic carbon film
resistors to replace 2 watt 47 ohm to 120 ohm carbon composition resistors
when rebuilding their plate suppressor chokes.  Who has actually tested
these newer resistors in their Drake and or Collins S-line equipment?  Did
you actually find carbon film did not work?  Did you find ohmite OY to work
as well as composition resistors for this application?  Have you looked at
the outcome with a spectrum analyzer for parasitics?

The reason I ask is I am about to order a BUNCH of Ohmite OY resistors (200
of them) and they are not cheap.  I want to replace a lot of my old chokes
with new ones.  (I don't trust the old coils Q any longer).  Consequently,
I'd like to buy the best alternative choice and get some first hand
knowledge from those that have gone before me.  (I'm not looking for theory
but info from those that actually have tried these other resistors to find
out what they experienced when they tried the different types).  I am not
interested in finding NOS carbon resistors for replacements.  I'm guessing
Ohmite OY is the way to go but I really don't want to guess.  WHO REALLY HAS
DONE THIS AND KNOWS?  I sure would appreciate hearing from you.  (I hope I
have not offended anyone.  It is just that I am not interested in hearing
about finding some NOS resistors, or Wille has 5 carbon composition ones he
would sell or why carbon film resistors probably would not work, or don't
change them out as your's are probably OK, etc).

Lee Bahr
w0vt
Houston


----------------------------------------------------------------------
On Behalf of "Lee Bahr" 
Submissions:        drakelist{at}www.zerobeat.net
Unsubscribe:        majordomo{at}www.zerobeat.net - unsubscribe drakelist in body
Hopelessly Lost:    majordomo{at}www.zerobeat.net - help in body of message
Zerobeat Web Page:  http://www.zerobeat.net
Brought to you courtesy of TLCHost.net  http://www.tlchost.net/
----------------------------------------------------------------------

---