Drifter wrote:


On another note, did you ever read that QST article the modification of the
Drake TR7?

OK Ace, ya got me. what about the article on moding the

TR7?

Apparently there is an article in a recent QST that describes adding DSP to the TR7.
I was interested if anything in the article might also pertain to the R7.

i have been wanting an R7, but the prices are out

of reason. i do have an MSR-2. i believe that passes

as the marine version of the R7.

No, the MSR-2 is I think a totally different animal (because of the switch selection
of the readout). What was once proposed was the MR-3, which is a repackaged R7:

http://www.dproducts.be/DRAKE_MUSEUM/mr3_receiver.htm

It never went into production. This from elsewhere on the site:

Interview of Ray Midkiff, Father of the DSR and MSR Main Marine receivers

Just rcvd. your e-mail on Drake products. The RR1, RR2, and RR3 rcvrs were modified
versions of the SPR4 Rcvrs. designed to meet the Marine Reserve standards. They were
designed by Bill Robertson (no longer with Drake) and Steve Koogler (presently at
Drake).

I designed the DSR-1 and DSR-2 receives intended as a commercial or laboratory
synthesized all band unit and also the MSR-2 unit that was designed to meet the
standards for a Marine Mains Rcvr.

The MR-3 (repackaged R7) would not have met the Mains spec.
==================

dxAce
Michigan
USA

dxAce wrote:

Drifter wrote:


No, the MSR-2 is I think a totally different animal (because of the switch selection
of the readout). What was once proposed was the MR-3, which is a repackaged R7:

http://www.dproducts.be/DRAKE_MUSEUM/mr3_receiver.htm

It never went into production. This from elsewhere on the site:

Interview of Ray Midkiff, Father of the DSR and MSR Main Marine receivers

Just rcvd. your e-mail on Drake products. The RR1, RR2, and RR3 rcvrs were modified
versions of the SPR4 Rcvrs. designed to meet the Marine Reserve standards. They were
designed by Bill Robertson (no longer with Drake) and Steve Koogler (presently at
Drake).

I designed the DSR-1 and DSR-2 receives intended as a commercial or laboratory
synthesized all band unit and also the MSR-2 unit that was designed to meet the
standards for a Marine Mains Rcvr.

The MR-3 (repackaged R7) would not have met the Mains spec.
==================

dxAce
Michigan
USA



Cool Steve. the man knows his Drakes. I got this receiver out
of japan, i believe it was about 1989. came from a ship builder.
it was still in the packing, never opened or used. i never really
checked the history of this model. it says marine radio on the
lower front. i keep it in a rack with a few other different brands.
sure does pull in the NDB's. and being marine, i guess it's aimed
at those freqs. but, as i said, i would love to have a clean R7
in my collection. what's the special draw on the RV-75-VFO? the
bids on ebay are going up fast. BTW, the switch's for the readout
work great, no need for a keypad.

Drifter...

Drifter wrote:

dxAce wrote:

Drifter wrote:


No, the MSR-2 is I think a totally different animal (because of the switch selection
of the readout). What was once proposed was the MR-3, which is a repackaged R7:

http://www.dproducts.be/DRAKE_MUSEUM/mr3_receiver.htm

It never went into production. This from elsewhere on the site:

Interview of Ray Midkiff, Father of the DSR and MSR Main Marine receivers

Just rcvd. your e-mail on Drake products. The RR1, RR2, and RR3 rcvrs were modified
versions of the SPR4 Rcvrs. designed to meet the Marine Reserve standards. They were
designed by Bill Robertson (no longer with Drake) and Steve Koogler (presently at
Drake).

I designed the DSR-1 and DSR-2 receives intended as a commercial or laboratory
synthesized all band unit and also the MSR-2 unit that was designed to meet the
standards for a Marine Mains Rcvr.

The MR-3 (repackaged R7) would not have met the Mains spec.
==================


Cool Steve. the man knows his Drakes. I got this receiver out
of japan, i believe it was about 1989. came from a ship builder.
it was still in the packing, never opened or used. i never really
checked the history of this model. it says marine radio on the
lower front. i keep it in a rack with a few other different brands.
sure does pull in the NDB's. and being marine, i guess it's aimed
at those freqs. but, as i said, i would love to have a clean R7
in my collection. what's the special draw on the RV-75-VFO?

Well, as far as I know, it eliminates the drift that the 7 line has before it warms up.
And, not 100% sure about this, but I think the tuning 'resolution' may be better as well.

I did briefly have an RV75, but could not find the 1544 adapter needed for use with the
R7/A. In retrospect I suppose I could have possibly had someone cobble up whatever is in
the 1544 somehow so that I could use it.

I did make some money selling it, but still wish I had it.

Pricey now, and at the same time, I have to ask myself if it would help me hear anything...
no. Would it help me QSL something I've already heard... no.


the
bids on ebay are going up fast. BTW, the switch's for the readout
work great, no need for a keypad.

Drifter...

dxAce wrote:

Drifter wrote:

dxAce wrote:
Drifter wrote:
No, the MSR-2 is I think a totally different animal (because of the switch selection
of the readout). What was once proposed was the MR-3, which is a repackaged R7:

http://www.dproducts.be/DRAKE_MUSEUM/mr3_receiver.htm

It never went into production. This from elsewhere on the site:

Interview of Ray Midkiff, Father of the DSR and MSR Main Marine receivers

Just rcvd. your e-mail on Drake products. The RR1, RR2, and RR3 rcvrs were modified
versions of the SPR4 Rcvrs. designed to meet the Marine Reserve standards. They were
designed by Bill Robertson (no longer with Drake) and Steve Koogler (presently at
Drake).

I designed the DSR-1 and DSR-2 receives intended as a commercial or laboratory
synthesized all band unit and also the MSR-2 unit that was designed to meet the
standards for a Marine Mains Rcvr.

The MR-3 (repackaged R7) would not have met the Mains spec.
==================

Cool Steve. the man knows his Drakes. I got this receiver out
of japan, i believe it was about 1989. came from a ship builder.
it was still in the packing, never opened or used. i never really
checked the history of this model. it says marine radio on the
lower front. i keep it in a rack with a few other different brands.
sure does pull in the NDB's. and being marine, i guess it's aimed
at those freqs. but, as i said, i would love to have a clean R7
in my collection. what's the special draw on the RV-75-VFO?

Well, as far as I know, it eliminates the drift that the 7 line has before it warms up.
And, not 100% sure about this, but I think the tuning 'resolution' may be better as well.

I did briefly have an RV75, but could not find the 1544 adapter needed for use with the
R7/A. In retrospect I suppose I could have possibly had someone cobble up whatever is in
the 1544 somehow so that I could use it.

I did make some money selling it, but still wish I had it.

Pricey now, and at the same time, I have to ask myself if it would help me hear anything...
no. Would it help me QSL something I've already heard... no.

Thanks Steve, good info as always.

Drifter...