Thanks for the invite, but the 1000-mile round trip is a bit much for lunch.
Thanks also for the rundown on the amp. Regards, Jeff --- In [email protected], "skipp025" <[EMAIL PROTECTED]> wrote: > > Hi Jeff, > > You can join all 15 to 25 of us hams, broadcasters, IT & > and general trouble makers for lunch most any Wednesday if > you're in Sacramento. Just drop Dave or myself a note for > directions. > > About the Uniden 220 "Trunking ACSB Mode Linear Amplifiers". > They were made by Milcom and some of you have already worked > on them in various forms. The only online reference seems to > be the N2CKH page: > > http://www.n2ckh.com/125m_rptr.htm > > I have found the ARX-2125 chassis to be frequency limited > above the trunking band. The output derated quite a bit. > > I have the Milcom version of the same or similar chassis > working very well with minor conversions. I rebiased the > amplifier and removed the wideband hybrid first stage. > Vcc voltage is pretty critical so I provide a regulated > 28 volt supply (not the original). From memory I get about > 130 watts output with 7 to 14 watts input. > > The Uniden Amplifiers have a lot of additional electronics > (in the form of protection and feedback circuits). You have > to wade through what little information there is to figure > out if you want to use the additional circuits. > > cheers, > skipp > > > > "Jeff Kincaid" <jeffk@> wrote: > > Hey Skipp, can the rest of us listen in from the > > adjacent booth? > > 'JK > > > > > "skipp025" <skipp025@> wrote: > > > Dave, > > > When I see you at lunch on Wednesday, I'll tell you > > > all about them... > > > skipp > > > > > > > "na6df" <jammerdave@> wrote: > > > > I have found a source for some Uniden 220 amps, I'm sure > > > > they are out of commercial ACSSB service. Model ARX-2125z. > > > > I know they are 125 watts out, probably linear, maybe 2 > > > > watts drive? Anybody have any info on these units? Google > > > > found nothing. The price is right, for sure. > > > > NA6DF, Dave Fortenberry > Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
