[Heathkit] SB-220 meter question

[Thomas Chesek]

As per the 1984 Master Parts List:

SB-220 meters
407-146  200 ua  1400 Ohms DC
407-147  150 Volts AC Ext Mag (external magnetics - for whatever that means)

SB-200 meter
407-103  200 ua  1400 Ohms DC

HM-102 meter
407-155  1000 ua  1000 Ohms DC

HM-2102 meter
407-179  1000 ua  1000 Ohms DC

Tom K3TVC

-----Original Message-----
From: Heathkit [mailto:heathkit-bounces at mailman.qth.net] On Behalf Of jack m
Sent: Wednesday, August 17, 2016 00:37
To: heathkit at mailman.qth.net
Subject: Re: [Heathkit] SB-220 meter question

Just wondering - the meters in the HM-102 and HM-2102 RF output/SWR meters
are physically the same size as the SB-200 and SB-220.  What are the
electrical characteristics of the HM meter movements?  
 
If they are the same as the SB linear movements, it certainly is easy to
change the faces of these to replace a broken or damaged SB 200/220 meter -
and definitely lots cheaper based upon the prices I see for complete used
HM's versus just the used meters for the SB linears!
 
If I recall, correctly, from  an earlier thread on one of the reflectors,
all the small SB equipment meters differ only by the face, and all meter
movements read full scale with 1 ma current.  I have changed faces on
several of these with great success.
 
Jack  W3RU