Okay I'll bite. :) Hope your manly ego isn't hurt... Me female.
If the design is from 1978 for HAM radio most likely the board is two sided. Very unlikely that it is a multi-layer board.
What is it exactly are you wanting? Replacement sensor? or meter of some kind? SWR meter, PWR meter ??? 27Mhz region (hey this is CB band). or is it something else AM %modulation??
If you can give me some idea, I can ask more questions to narrow down what you really need or want or help you with figuring out what needs fixing.
sincerely,
--- In Homebrew_PCBs@yahoogroups.com, "herpsrwe" <herpsrwe@...> wrote:
>
> Tram / Diamond Corporation closed many years ago...
> Parts are no longer available for the Meter or the Sensor...
>
> Yes, I wish to have this particular meter functioning, to go along with mt Tram D201A 11 Meter 40 Channel AM / SSB Tube Type Transceiver.
> Bot the radio and meter are from the same era and the same manufacturer. I am not a collector, so to speak... Just the radio I have had since new in 1978, so sentimental value and adding to the nostalgia was my intention...
>
> I do not believe this is a standard type meter, at all... It is an automatic meter, requiring no work of the operator, turning a knob.
> It actually has a United States Patent of it's own which can be read here : http://www.freepatentsonline.com/4249127.html
>
> The Meter's Sensor was labeled " HFS-1 " by the factory and the Meter labeled ASM-1. The Meter will not work without the Sensor and vice versa...
>
> Perhaps I am asking for too much... But none the less, it does not hurt to ask... Or does it ?
> The only thing I am hurting is my pride, having to embarass myself to ask.
>
> One has to start somewhere in any endeavor...
>
> Bill
>
> --- In Homebrew_PCBs@yahoogroups.com, Harvey White <madyn@> wrote:
> >
> > On Sun, 18 Nov 2012 15:34:27 -0000, you wrote:
> >
> > >I apologise for my lack of electronics knowledge...
> > >The reason I am here...
> > >
> > >I am in the USA, in Massachusetts.
> > >
> > >The circuit design is circa 1978. Through hole construction, I assume.
> > >The number of layers, I have no clue, due to my lack of electronics knowledge.
> >
> > That dates it, and allows you to use more or less modern parts, except
> > for the tubes and sockets.
> > >
> > >Yes, I visited Express PCB ? website... I believe it was and viewed schematic creation software, PCB Design software... Prices, etc...
> > >I had no desire to spend hundreds of hours working both programs in order to attempt to accomplish the feat. I admit, it is beyond my capabilities... I am a Metal Fabricator / Welder by trade... Not an electronics technician... I am a Communications Radio Operator at a hobbyist level... Not a radio technician. I was unable to get other's attention regarding this matter, in online radio groups...
> >
> > You are asking for something a bit substantial, in a way.
> >
> > >It appears that this piece of radio equipment could be considered rare, as I was only able to find one other person with one, who is also missing the same related piece of equipment... I even had a supposed Dealer of the Factory Eqipment doubt the date of manufacture and the factory which produced it... He is mistaken, as I have one...
> > >In the PHOTOS Section, I have placed the Schematic, the required Inductor ?, and it's description from the Manual, titled :
> > >Tram / Diamond Corp ASM-1 Meter
> > >
> >
> > OK, this is a standard VSWR meter. Unless you have a specific need
> > for this absolute piece of equipment, any commercially available VSWR
> > meter that will cover the frequencies of interest will work. I'm
> > assuming ham bands, and quite frankly, anything made for CB use would
> > probably work well enough as is. You have a dual meter (forward
> > power/reflected power) SWR bridge. Pretty standard.
> >
> > >Yes... Other methods of construction may be easier... If I had the electronics understanding... Sorry, I do not.
> > >I began to search for components, and it seems I can still find them, although they are from 1978... I assume I would be using parts from that era of manufacture... Seems 1N67A Diodes are not that plentiful though ??? No, I am not looking to re-engineer the circuit to use more modern parts... Far beyond my capabilities... I cannot even determine which construction methods the parts should be... Resistors... Carbon Composition, Carbon Film, Metal Oxide ???
> >
> > Metal oxide are not needed, carbon composition is ok, so is carbon
> > film.
> >
> > The diodes in particular, 1N67's are going to be hard to get in the
> > original form, and generally silicon or shottkey will probably work
> > well enough, but RF is not my strong point here.
> >
> > You could get a copy of the Radio Amateur's Handbook, and hopefully
> > the ARRL still has construction articles, and likely a PC board
> > pattern for a more modern unit.
> >
> > >Capacitors used ??? I HAVE NO CLUE...
> >
> > You're in trouble here, since you don't seem to know the parts and how
> > they are used.
> >
> > >The "Ferroxcube"ferrite form needed to wind the inductor is still available, although it now has a new part designation number, I have been informed...
> > >Actually, perhaps more than ONE of these I would like made... I would like to offer the other person I found who also has a Meter, MINUS the Remote Sensor, a completed Sensor Circuit Board... I do not believe I will find more people, minus the Meter's Sensor, but who knows ???
> >
> > The remote sensor is a commercially available item, I suspect. You're
> > looking to have the sensor made, but that might be available, if the
> > meter you have matches the meter the commercial unit uses. I'm
> > assuming you want the original meter to work rather than something
> > newer.....
> >
> > Harvey
> >
> > >
> > >Bill
> > >
> > >
> > >
> > >
> > >--- In Homebrew_PCBs@yahoogroups.com, "tda7000" <Tda7000@> wrote:
> > >>
> > >> It would probably help if you gave more information, like what country you are in and more details of the PCB you want, how many layers, what kind of components (TH or SMD) etc...
> > >>
> > >> --- In Homebrew_PCBs@yahoogroups.com, "Duane C. Johnson" <redrok@> wrote:
> > >> >
> > >> > herpsrwe wrote:
> > >> >
> > >> > > Hi All ,
> > >> >
> > >> > > Does anyone here make PCB Boards for others ?
> > >> >
> > >> > > I have a one time need for a PCB for a piece of vintage
> > >> > > radio communications equipment. The PCB would contain a
> > >> > > dozen and a half components.
> > >> > > If anyone wishes to discuss it, contact me and I will
> > >> > > provide the schematic I was able to obtain.
> > >> > > The item was manufactured in 1978 and the factory has
> > >> > > been closed for a number of years.
> > >> > > It took me months scattered throughout the internet to
> > >> > > obtain the information necessary to construct one...
> > >> > > I do not wish to spend years to gain the knowledge in
> > >> > > order to enable me to construct one...
> > >> > > I would rather trust someone experienced...
> > >> > > Thanks in advance for your time,
> > >> >
> > >> > Since you only want to make 1,
> > >> > why not construct it using a plug board.
> > >> >
> > >> > > Bill
> > >> >
> > >> > Duane
> > >> >
> > >> > --
> > >> > Home of the $35 Solar Tracker Receiver
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