AW: Expo conv. heater (tomg et al.)

[Fraser, Colin J]

> -----Original Message-----
> From: Haible Juergen [mailto:Juergen.Haible at nbgm.siemens.de]
> Sent: 03 February 1999 16:30
> To: Fraser, Colin J; DIY
> Subject: RE: AW: Expo conv. heater (tomg et al.)
> 
> 
> 	>Are those chips soldered in or socketed ? 
> 	>If they are socketed, does the instability follow the 
> chip if you
> swap them
> 	>over ?
> 
> Here my lazyness is greater than my curiosity (;->).
> This would not just be swapping, but swapping and 
> re-adjusting, which is
> not worth the trouble for me.

How can you sleep at night, not knowing ? ;-)

You wouldn't have to re-adjust - just see if the tuning drifted on the bad
'chip' or the bad 'circuit', then swap them back.
Maybe the startup drift was why Roland started selecting 3340s.

Cf