[Elecraft] [K2] Q7/Q8 base voltage

[Don Wilhelm]

Jukka,

Measure the values of R59 (4.7k), R60 (100 ohms), R61 (120 ohms), and 
R62 (2.7k).
If this is a K2 with a serial number below 3000, R60 will be a 100 ohm 
potentiometer - set it to full counterclockwise rotation or replace it 
with a fixed 100 ohm resistor.

Even though 0.65 volts is slightly higher than I like to see it, that 
voltage will be OK.

73,
Don W3FPR

On 9/8/2017 11:31 AM, Jukka Tarvainen wrote:
> Hello!
> 
> While raining and after solar flares it is time to look into my friend's K2
> (#3169). It had other PA transistor blown. I am in process of replacing all
> K2PAKIT components. After changing Q11 and Q13 I am checking Q7/Q8 B
> voltage. On RX it is 0 volts, but on TX seems to be 0.65 V with my
> multimeter (Meterman 37XR). How to lower it to recommended 0.62-0.63 volts?
> Or should I check with other meter?
> 
> 
> 73 de Jukka OH4MFA, OG4T
> K2/100 #4293, K2 #5267
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