[Heathkit] SB-610 Intensity Circuit

[Jim Brannigan]

Carl,
I had to look at the schematic and think upon this.....I've had a few TEK 
scopes and they exhibit the same properties.

I would leave it alone.

Thanks for your earlier tips on replacing all the HV resistors in my HO-10, 
it plays like new.....

Jim


>I am Renovating the SB-610 for several of the guys & on my 8th one so far.
> The Intensity Pot .. a 500k Ohm with an On/Off Function Switch has
> a 330K Ohm 1/2 Watt Resistor going to Pin 1 over from the Focus Pot.
> Pin 2 also has a 330K Ohm going to the CRT, and Pin 3 has a 100K Ohm also 
> going to the CRT.
> All these Resistors have been upped to 1 Watters.
> I've done several of these Scopes and everyone has the same problem.
> When you first turn the scope on ... you've got to turn the pot up
> to almost 2/3rds the way to see a trace line.
> Has anyone experimented with different values of these Resistors
> to get the Traceline brighter when turned on -less  than-  2/3rds the way 
> up ?
> Thanks guys
> Carl, k4zrd