> If it is made out of discrete components, it could be essentially
> the same. If it uses IC's they've surely changed in the 20? years
> or so since it was designed. Probably made in China ... could
> easily be using discretes.
I ripped apart another Vivitar flash a couple nights ago. Other than
the TTL stuff in that particular flash, there wasn't a single IC in
the design. The stuff in the head looked like it could have been
made in 1968.
Anybody ever see how large those capacitors are in the 283/285?
BTW, I have found that the newest NiMH batteries *might* be slightly
problematic in flashes. They have so much current capacity that I
think it can overwhelm the circuits. On my 285HV one set of my
batteries will actually recharge the flash after a full-dump in just
under three-seconds, which is the same as if I have the flash
connected to an external HV source (ac adaptor). While this might
not be an issue with the 283/285HV, it could be a problem with other
flashes that might not handle that kind of current.
AG
____________________________________________________________________________________
No need to miss a message. Get email on-the-go
with Yahoo! Mail for Mobile. Get started.
http://mobile.yahoo.com/mail
==============================================
List usage info: http://www.zuikoholic.com
List nannies: olympusadmin@xxxxxxxxxx
==============================================
|