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Post by Ratcheteer on Jul 14, 2012 20:44:40 GMT -5
Hello All, I picked up this browning set not long ago, and was wondering if this is the factory color, not sure if it could be seen in this picture, I can post close up. does not look like they been painted. if someone can give me alittle history on this set 23-s nine/r-2700a they are very clean one owner. thanks for any info. Ratcheteer Attachments:
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Post by gator7 on Jul 15, 2012 9:35:57 GMT -5
It looks like the original color to me. Very nice rig.
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Post by gator7 on Jul 15, 2012 9:36:59 GMT -5
Don't think the channel selector is the original?
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Post by Ratcheteer on Jul 16, 2012 6:23:53 GMT -5
Ok, thanks for the reply. now that you mentioned about the selector knob, looking at the manual shows a round knob. But looking at pictures on the web have noticed a few models with few styles of knobs on the transmitter (s-23) seems like the one with the round transmit bulb has my style of knob or other style. I would like more info on this. the set I have came from one owner and don't think he would have changed it?? attached is a photo from browning page and you can see s-23 on bottom with same knob I have on my transmitter..? ratcheteer Attachments:
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Post by FIXR on Jul 16, 2012 22:14:23 GMT -5
That is the original long pointer knob. There are two different front panels for the 23/S Nine. One has the long pointer knob with the channel numbers printed on panel like yours and the other has a small pointer knob with the numbers printed on a metal disc.
The early model covers were painted a reddish brown (oxblood) and the later ones were dark brown.
The R2700 / S9 series is my all time favorite to repair and operate. In my opinion the S 9 transmitter has the most audio of any other Browning transmitter.
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Post by Ratcheteer on Jul 17, 2012 6:33:25 GMT -5
Great,
That is good info, my set has the redish color, that is why I was asking about the paint did not look like the brown on my mkIII.
I am happy to hear the pointer is factory. I just got a second set which is still in the box. I will be selling one of the sets. will post soon.
Thanks for the replies, fixer for your expert input thanks.
73 Ratcheteer
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Post by Ratcheteer on Jul 17, 2012 6:43:54 GMT -5
One more question,
I have not used this set yet, I did connect to meter and dummy load to see if it had output, shows about 4-5 watts, but seems like there is no modulation. I tried two mics. I have not opened it up yet to check tubes or anything.
I would like to know if this transmitter also had a PING ?
RATCHETEER
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Post by 2600 on Jul 17, 2012 11:22:25 GMT -5
The Browning "ping" effect resides in the receiver, not in the transmitter.
Mostly.
What you hear when you key the mike is simply audio feedback, the same "howl" a truck driver gets when his talkback is too loud, and the mike gets near the speaker. Normally a two-piece radio like a Browning base must have a relay circuit that shuts down the receiver while you are transmitting. Old shortwave radio receivers would have a jack on the rear marked "mute" that does this. In the bad old days of ham radio, all stations consisted of a separate receiver and transmitter. An external relay would transfer the antenna with one set of contacts and shut down the receiver audio with another set of contacts. Otherwise, your "talkback" squeal would be a big headache. One-piece "transceiver" radios appeared at very high prices in the 1950s and got cheaper and cheaper by the decade. Nowadays, only an antique ham station uses "separates".
Some time in the dim, dark past someone increased the size of one filter capacitor in a Browning receiver. It was wired "downstream" from the receiver-mute relay. This caused the receiver audio to remain active while the charge in this capacitor drains away. The larger the capacitor, the longer this takes, and the longer it takes the "talkback squeal" to fade away to zero.
I really don't know who discovered this and when it began to appear on Browning radios. But this is why messing with the transmitter won't "give" the two-piece base radio that "Ping".
And that's what I meant by "mostly". The ping must travel into the mike, through the transmitter, into the receiver, and back out the speaker again. Any faults in either cabinet will affect the sound of the ping. A bum tube in the receiver might make the ping have a "hum" sound on it. A bad tube in the transmitter might just make the ping weak, even if the receiver is in top condition by itself. The ping is the sound of BOTH units, even though it gets created in the receiver.
There must be a picture somewhere showing where the ping capacitor goes in this model. Just don't have it handy right now. Might make a good candidate for a sticky post, a set of pics showing where the ping cap is wired for all the Browning receivers.
Hmmm.
Oh, one last thought. The age of this radio makes it vulnerable to some failures that could become expensive with no warning. UNPLUG the radio and remove the bottom covers. Each unit has an aluminum cylinder about 3 inches tall and 1-3/8 inches in diameter visible above the chassis deck. Have a look beneath each of these with a really bright light. Any sign of powdery brown or tan residue OR VISIBLE SWELLING is a time bomb in the making. No telling when it will go "kaboom". ALWAYS make sure the fuse size is no bigger than 2 Amps. BEFORE you turn it on again would be a very good time to do this.
It's possible also that the radio had its 20-year tuneup (25 years ago) and the filter capacitors are not the 45 year-old original parts. But electrolytic "filter" capacitors are not meant to last 20 years, let alone 45. Even if the radio had a 20-year tuneup, this means that it will be due for the next one soon if not already.
Keeping the smoke inside the radio is alwas cheaper than putting it back in. Best not to let the smoke out of the radio in the first place.
73
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Post by crazybob on Jul 27, 2012 4:20:49 GMT -5
2600 is so right! Old electronics can put a hurting on you! It's always good to exercise caution. ...My old S-9 has the long
Chicken Head pointer on the dial. I had an old R-2700 that was painted a rough finish, reddish brown.
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Post by railroader on Aug 7, 2012 20:17:14 GMT -5
here is a pic of most of the browning equipment availible, you can see that my 23 S-9 has the same pointer on it as yours does. Also the "ping" started as a mistake in the R-27 S-23 models from the factory and was corrected, but when service techs from all over the country started requesting that radio come that way. Browning provided the info on how to do it. Browning never manufactured radios that way intentally. It was just a mod Attachments:
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Post by Ratcheteer on Sept 26, 2012 14:42:22 GMT -5
Nice Collection,
My Question was answered...Thanks all...
Ratcheteer
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