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Of course DC current was available in places other than ships.? For instance large parts of Manhatten had DC until fairly recently.? ?You had to have an AC/DC receiver to work there.? However most

hi richard "dont confuse"? is? a simple; but, which models are in which marine category?? and what makes it so?? i see Halligan calling the S-51 a marine? receiver, and it has the LM marine band

====end quote? ,, begin comments==== hi again Richard and others I hate to quibble, but i looked up some info and saw a rear pic of the S-77 and has no octal socket and not much at all, but the S-77A

Thanks Jim, That confirms what I learned today. When I got it out and disassembled, I found that only one of the pair was corroded. The one that appeared to be good measured 92pf. The bad one measured

Don't confuse receivers intended to receive MF marine frequencies with those which could operate? from the mains current avaliable on ships,, namely 110 VDC.? Many receivers adapted to receive

Greetings to Walt and the Group: Thank You for the data.?? I will attempt those measurements as soon as I am able.?? Had out-patient back surgery this morning and I am in a bit of pain; also, I'm

Correction: the S-77 is AC/DC of the S-40B .? The socket is to run the receiver from batteries.? I did not look at the schematic to see how it's arranged.? On the AC only version the filaments are

Hi Walt! Here's the repair note I have for my own SR-400 concerning T3: T3 tuned up nicely after this change, so 90 to 92 pF must be pretty close.?? I wasn't able to find a 90 pF capacitor and there

yes Steve, but this is Halligan's? gymnastics, so musterys never end I am just replying to mention whati thought i said before... that picture from ??? up there^^ shows an ac outlet in that spot with

=== end quote begin comment===== hi Richard again ,and others i don't understand your wording ... I can see that the S-40 [no B] has an octal socket? not a supply? to allow it to be connected to

Back in the time frame of 1974-75 power tools for CA had to have polarized plug plus double insulated. Most US brands made the switch instead of running 2 production lines. One thing that drives me

Interesting. The S-52 and the S-77. They were the Acey'Deucy versions of the S-40 and S-40B. Regarding the 2 prong ac plug looking accessory socket on the rear panel, my S-40B has it but no schematic,

hi richard ,others too Re; The 0.01 uF capacitor was to bypass RF on the incoming power. well ok it this it true much of the time, any RF incoming? on neutral will be RF connected to chassis so the

Well, so the plot thickens. I have an S-40B here under the bench for eventual restoration and pulled it out and had a closer look. Attached is a photo of where the power cord enters and the covered-up

Marine version has an AC/DC power supply to operate on ships which have only DC mains.? The S-77 is the marine version of the S-40Sent from my Galaxy

hi Steve, others too I am reading your comment Steve, with interest, and ran into "marine version" and wonder, in the ongoing context, what "marine version" implies. Should it be obvious, and I am

I am old enough to remember. Few? homes had polarized sockets when these receivers were new.?The 0.01 uF capacitor was to bypass RF on the incoming power. Goes from the unswitched side of the line

David I am up north of 49 where things are similar, but not the exact same. I believe we had, and required 3 prong polarized outlets before 1955, but only for Outside, Garages, Laundry.... so the

Craig and Steve mainly here I am still confused as usual but ,back up top Craig seemed to ask about a two prong socket which perhaps we can also see on Jeep's picture, and Steve replied that it was a

Sometime around 1972-1973 before 3 prong outlets were required by the NEC. Working on old houses with 2 prong outlet never recall seeing a polarized outlet. David