Looking for RME 4300 information

[Michael Tallent]

Bob:

I have a 4 page original sheet on the 4300, it has tube layout, specs and
operation, but no schematic.

The biggest problem with the tuning dial is extra drag from the tuning
capacitor, and any oil on the drive.  It is a friction planetary drive with
steel balls, and there must NO oil or grease anywhere inside the drive.
Clean it with a solvent like alcohol and get it squeaky clean and dry, and
then re-assemble.  Some versions had screws behind the tuning knob that
adjust the loading on the drive balls, make sure they are not to tight.

I have several 4350A's and VHF126 converters and 4301 SSB adapter and 4300
speakers.  Also a 6900 with matching speaker that needs soem work, maybe
someday.

Mike Tallent  W6MXV  in KY

----- Original Message ----- 
From: "Bob And Bettina Groh" <rgroh at SWBELL.NET>
To: <BOATANCHORS at LISTSERV.TEMPE.GOV>
Sent: Wednesday, August 03, 2005 2:05 PM
Subject: [BOATANCHORS-TEMPE] Looking for RME 4300 information


> Just picked up a RME 4300 from Ken Brandt on this list and now I am
> looking for information before turning it on and doing a little
> maintenance work.  My needs are as follows:
>
> 1.    Would like to find a free web source for a manual - preferably one
> that covers servicing. BAMA does not have one.  Darn. I have a
> particular need for a good schematic, alignment instructions and some
> idea of how to access the variable speed dial.
>
> 2.    There are at least two nice and reputable sources for manuals that
> I have found (and used before). One has an 'Operators' manual and the
> other has an 'Operators/Service' manual (at about 2x the price). Not
> sure if the Service manual gives me anything more than the 'Operators'
> manual.  So my question is: does anyone know if the latter manual has
> substantially more than the first?
>
> 3.    From my initial foray's on the internet, I gather the dual speed
> dial is a known bad actor. One source implied they never did work right
> and that some type of retro-fit was necessary. Does anyone have any
> specific information on what to do - parts required, general process, etc?
>
> Thanks to all for reading this and thanks to Ken for selling me the
> radio. It is a nice fit to my collection of RME radios.  Now I just need
> a RME 4350 and maybe a RME 6900. Well, just need is a relative term.  My
> wife would say I need none of the above!
>
> Happy collecting and 73
> Bob Groh, WA2CKY
> Blue Springs, MO. 64014
>
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