Hi ----
This is 17 th attempt --many forums cannot help --get really annoyed --
The question is very straightforward ---VISUAL ID of those tiny glass zeners ==7 yrs later -still stuggling to id a 12 volt one watt zener
on a mountain of scrapped pc /& various circuit boards ---
OK --have built many circuits ---in the backwoods --guitar amps /timers /alarms --
have studied all the basics for many years --
A simple straight forward battery charger circuit ----died when the polarity output was accidently /stupidly crossed--
fried the only 7128 voltage regulator chip I had --
but found another ----
oops ---Zener diode --required --
so after weeks of scouring circuit (old ) boards ----
have found many zeners --but voltage /coded /numbers --are almost impossible to --read --
cAN ANYONE show me how to VISUALLY ID THE 12 VOLT ZENER ?==
IF not --no problem ----theory on forward /reverse breakdown /bias is NOT required ---
just a color or number or code app that id,s these Zeners --will be much appreciated ---
(cannot find a chart or online Zener id /codehieroglyphics unravelling method )
Most grateful if anyone can see these little nightmares ---I give up !
regards --Zamdude --Africa
This is 17 th attempt --many forums cannot help --get really annoyed --
The question is very straightforward ---VISUAL ID of those tiny glass zeners ==7 yrs later -still stuggling to id a 12 volt one watt zener
on a mountain of scrapped pc /& various circuit boards ---
OK --have built many circuits ---in the backwoods --guitar amps /timers /alarms --
have studied all the basics for many years --
A simple straight forward battery charger circuit ----died when the polarity output was accidently /stupidly crossed--
fried the only 7128 voltage regulator chip I had --
but found another ----
oops ---Zener diode --required --
so after weeks of scouring circuit (old ) boards ----
have found many zeners --but voltage /coded /numbers --are almost impossible to --read --
cAN ANYONE show me how to VISUALLY ID THE 12 VOLT ZENER ?==
IF not --no problem ----theory on forward /reverse breakdown /bias is NOT required ---
just a color or number or code app that id,s these Zeners --will be much appreciated ---
(cannot find a chart or online Zener id /codehieroglyphics unravelling method )
Most grateful if anyone can see these little nightmares ---I give up !
regards --Zamdude --Africa