[ARC5] Advice requested...

[Bill Cromwell]

Hi Ken,

I'm somewhat of a regen fan but the real rabid regen folk are on the 
regenrx list at Yahoo. In their files section you can find information 
about separate regen (non-oscillating) stage followed by detector - with 
or without oscillator. I don't go there. Most of the time I am using the 
regens for CW, SSB, of the digi modes and the detector is oscillating, 
of course. When it is used in the non-oscillating at all times it is 
often referred to as the Q-multiplier stage but is not quite the same 
application as what we think of as an add-on Q-multiplier. I only have 
vague notions about those. You might get some valuable info over there 
if you enquire on regenrx.

These are not the same as the fixed tuned regen detectors used behind a 
tunable converter (super-gainer) or a tunable regen detector used behind 
and xtal converter...oscillating or not. The two stage 'regen' could be 
used in either application, though.

73,

Bill  KU8H



On 04/17/2015 08:39 PM, Kenneth G. Gordon wrote:
> Although this is a bit off topic, this group is the first one I thought
> of to ask this:
>
> I have a Mackey Marine model 128AY receiver here, which I want to
> restore. After several years of off and on work, I have managed to
> accumlate an entire schematic, and most of the wiring diagram, in
> addition to the operating manual.
>
> (For those interested, it is up on my website, W7EKB.COM in the Glowbugs
> sectoin, under Military.)
>
> Although my receiver is not missing any parts (as far as I can see) the
> chassis and front panel are not in good condition, with some rust on both
> and terribly deteriorated paint on the front panel and cabinet.
>
> And here is my request: the color is a sort of green. It is very
> difficult for me to tell exactly what shade of green, and I am hoping
> someone here can tell me what the shade is so when I refinish the thing,
> I will have a close match to the color of the original receiver.
>
> Anyone?
>
> Also, I find the circuit to be rather unlike any regenerative receiver I
> have so far used: it has a triode (6J5) regenerative stage, followed
> immediately by a 6SJ7 detector stage. In every regenerative receiver I
> have yet seen, the regenerative part IS the detector.
>
> In the RCA model RBA receiver, the detector never is allowed to go into
> oscillation, and the receiver has a separate tuned heterodyne oscillator
> following the regenerative stage, but this circuit appear to be backwards
> from that one.
>
> Ken W7EKB
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>