Helper never printed a "service manual" for the SM512. Only a operators manual was ever issued. It does have a schematic and some adjustment information in it. I have a copy of the manual. I thought I had it with me at my temp qth but I don't see it. If you will email me after the 1st of the year I should be able to find it and will send it along.
73 Gary K4FMX > -----Original Message----- > From: Repeater-Builder@yahoogroups.com [mailto:Repeater- > buil...@yahoogroups.com] On Behalf Of skipp025 > Sent: Tuesday, December 23, 2008 8:19 PM > To: Repeater-Builder@yahoogroups.com > Subject: [Repeater-Builder] Re: Helper Instruments SM-512 and SM-1024 > > Hi Randy, > > You'll be hard pressed to find the Service Manual unless one of > the manual sharks (people selling manuals) has one. The only other > source I've seen for the manual has been one or two of the SM-512 > units I've seen up on Ebay in the last two years. > > A fairly well thought out basic service monitor. Like most every > Helper Product ahead of it's time and made with saving the comm > tech time and money. > > Later version was the SM-1024. > > Helper Instruments was in Florida, growing out of a line of well > thought out instruments targeted toward the Two-way radio > industry. The owner of Helper passed and his daughter tried to > keep things going but was unable to continue with new innovative > products that separated Helper from the competition. > > Sometime later she sold interest in some specific Helper > Products to Zetron. After a short time even Zetron discontinued > production of their Helper Instruments products. > > The SM-512 Service monitor (and the later SM-1024) were very > special animals (products) not produced or continued by Zetron. > The one NY located service center (person) for the SM-512 > passed some years back and the legacy of Helper slowly fades > into history. I have a fair number of Helper Instrument Products > and manuals... but sorry nothing for the SM-512 and SM-1024. > > cheers, > skipp > skipp025 at yahoo.com > > > > "wb8art" <wb8...@...> wrote: > > > > Anyone have a operations manual and or service manual for a Helper > > Instruments SM-512 > > > > Randy > > > > > > ------------------------------------ > > > > Yahoo! Groups Links > > >
