> ORIGINAL MESSAGE:
>
> On Thu, 25 Feb 2010 16:04:21 -0700, "Jim Garland"
> <4cx250b@muohio.edu> wrote:
>
> >I received several requests recently for schematic diagrams of my
homebrew
> >8877 amplifier. This is an amp that was described in the Bill Orr W6SAI
> >Handbook in several editions. I rebuilt the amp in the mid-90's to
> >incorporate the WARC bands, and also added QSK and electronic bias
> >switching.The schematics for the upgraded amp have never been published.
> >Recently, I upgraded the amp again, mostly in the HV power supply. The
> >latest schematic diagram can be downloaded from >
> >
> >http://www.w8zr.net/images/W8ZR%208877%20Amp%20Schematics.pdf
>
> REPLY:
>
> Nice work, Jim, but I noticed neither meter has diode protection. Was
> that accidentally omitted from the schematic?
>
> 73, Bill W6WRT
>
Thanks, Bill. Yep, it was an oversight in the diagram. They're actually
there in the amp. Cheap protection for expensive meters!
73, Jim W8ZR
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps
|