[AMPS] Heathkit SB-220 meter face scans

[nospam4me@juno.com]

Hello there,

The repair of my friends Heathkit SB 220 continues forward. The 
damaged parts list for this amplifier reads like a blue print for a 
parasitic bang as described by Rich, AG6K. 

Both the grid chokes were open, the Ip meter is blown, the zener 
diode toast, the band switch arced.  So I've already brought the 
amplifier back up with some mods and I've swapped the Grid - 
Ep - Rel RF meter movement for the Ip meter by changing the 
meter faces. The replacement meter will be used for the grid 
current combo meter.
The good meter measured out as a 200 uA movement with  Rm 
equal to ~1445 ohms. 

While I had the faces off, I took the opportunity to photocopy and 
scan the meter faces with some very nice equipment. Persons 
wishing to re scale a meter may be able to work with the images 
using photoshop or a similar program. Three formats are in the 
zip'd package in 600 and 800 dpi as a gif, bmp and pdf file. 
By the later part of this week or sooner, the package will be on 
the Amateur Radio Pages of  http://sonic.ucdavis.edu  

Look for the second Heathkit download file on the main page to 
contain the scans.

cheers
skipp

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