[Heathkit] FW: SO-4221 Repair Question

[Phill Peterson]

Hello Moderator,

 

I am a member of this group.  My registered email address is
'phill at iname.com'.

 

[This address which redirects my incoming email to 'pi3cubed at aol.com'.

  My other email address 'pppicubed at aol.com' is the one Microsoft Outlook
uses when I send email.]

 

The SO-4221 was a built oscilloscope that Heath Company sold.

 

If this type of question is restricted from this group, to which group do
you suggest I send it?

 

Thanks!

Phill.

 

 

-----Original Message-----
From: Phill Peterson [mailto:pppicubed at aol.com] 
Sent: Sunday, April 15, 2007 5:07 AM
To: heathkit at mailman.qth.net
Subject: SO-4221 Repair Question

 

Hello,

 

I bought this assembled oscilloscope from Heath in the late '80s.

 

After it warms up about 20 minutes, the trace moves slowly upwards off the
top of the CRT

  and never reappears.  Power-cycling sometimes temporarily brings the trace
back.

 

Does anyone know of someone who may be able to repair this?

 

Thanks!

Phill.