Happened upon on Tandberg 41 SW portable. . .

[Njord Noatun]

Originally Posted by Thyratron

If I end up using a wall adapter, what kind of mA rating should I use?

Per Arne over at Alternativaudio says: "12V / 400mA, with ground in the center of the plug".

[kg4cna]

Originally Posted by Thyratron

...including Radio Havana (talking about how to set up shortwave equipment, interestingly enough)

I heard that one myself! I was playing around with my National (panasonic) T-66...trying to trace down the reason it has very low volume when the turned all the way up. No luck yet. If anyone can point me to a diagram for this thing, I would be very thankful! It's a National T-66 MW/SW radio.

http://oppcatv.com/kg4cna/NationalT66a.jpg

[Sandy G]

Not familiar w/either one of these sets, but do they have an "RF gain" control & is it turned all the way up ? You shouldn't need that w/a blowtorch like Havana, but you never know...

[Thyratron]

I've picked up a few more interesting things over the past couple of days, but the most unusual was one (unidentified) that "played" nothing but morse code signals; it was at the lower end of the SW dial. I wonder what it could have been.

I had the radio apart the other day, trying to retension/clean the headphone jack, as the plug fit is very loose and makes a poor (or no) connection. "Trying" is the word there, as I was unable to reach it easily, and did not want to be taking the circuit boards, speaker, etc. apart just for something like that. Does anyone know of a trick for doing this from the exterior of the jack? It's a regular 1/8 incher, or so I assume; Njord, please correct me if I'm wrong and it's a different standard that was used.

[Njord Noatun]

Originally Posted by Thyratron

I had the radio apart the other day, trying to retension/clean the headphone jack, as the plug fit is very loose and makes a poor (or no) connection. "Trying" is the word there, as I was unable to reach it easily, and did not want to be taking the circuit boards, speaker, etc. apart just for something like that. Does anyone know of a trick for doing this from the exterior of the jack? It's a regular 1/8 incher, or so I assume; Njord, please correct me if I'm wrong and it's a different standard that was used.

Again, Per Arne at AA says that although he believes there are two standards for the the 1/8" (3.5 mm minijack) jack (one US standard with a pronounced "waist line near the tip, and one International standard with a straight(er) tip), both types should fit equally well. He also notes that there is no point in connecting a stereo plug - a mono plug suffices.

Specificallty to your question, he says that it is possible to tighten the springs inside the headphone connector with a screwdriver for a tighter fit, but that it is done from the inside and some disassembly is required.

Hope this helps.

[Sandy G]

No telling what the Morse Code station was. Could be some automated signal, could be some ham fooling around, could be some clandestine/pirate station. Lotsa weird stuff out there, some signals are strange enuff in & of themselves. Various telemetry signals sound like a coffee percolator running, the end of an LP, the noise you make if you thump yr tongue against yr lips, all sorts of bizarre things. Most always you need a special decoder to make any sense of them at all.

[Thyratron]

Originally Posted by Sandy G

No telling what the Morse Code station was. Could be some automated signal, could be some ham fooling around, could be some clandestine/pirate station. Lotsa weird stuff out there, some signals are strange enuff in & of themselves.

There sure is some weird stuff. But I think that that's part of the fun of radio, made especially strange when heard late at night!


P.S.,,,A special thanks to Njord for your help with this Tandberg, asking the guys at the other forum and all. I've learned more about this particular radio from you than from all the searches I did on it. Very much appreciated!

[Njord Noatun]

Originally Posted by Thyratron

A special thanks to Njord for your help with this Tandberg

You're welcome!

If you go to a certain auction site, and search for item # 250172253290, you will see a TP-41 that sold yesterday for just a tad more than you paid for yours!

[Thyratron]

Originally Posted by Njord Noatun

If you go to a certain auction site, and search for item # 250172253290, you will see a TP-41 that sold yesterday for just a tad more than you paid for yours!

Wow, I guess so! The amounts some things sell for on there are really amazing. They did provide a very good description and clear pictures, which always help, but still. . . that's hard to believe!

[larschr]

I´m pretty sure those connectors on the underside is the power inputs for a docking station for car use.