In my days I used a FS 23 Sonar a Maverick 250 Modified for 500 Watts a Moonraker beans On A 80 Foot Radio tower, in the 50s and 60s talk to Australia and Japan and Germany, Love your videos good job Tennessee prepper 101.I am 78 years A old CBer.
For people that do not want to remove the cover - just put one of the 5.5mm DC Jacks wired to the battery circuit. Then you can use the 9 volt battery clip with the 5.5mm adapter or any wall-wart just plug it in.
I would be considering the noise from the wall wart. Some are better than others. Make sure your wall wart has a transformer inside instead of a switching supply. You may have to come up with a power filter.
I've learned so much from your videos, even though i only understand a tenth of the technical aspects. One of my favorite channels. I'll be here when the Professor Of Power returns! Cheers Mike!
You perform some fantastic work Mike, interesting that you bring up the test point subject, I havn't seen those in radios in a long time, my thoughts are that the radio engineers these days build modern radios to be disposable, with todays generations thought process is, if you own a radio long enough to where you need to take it to a tech and have it tuned up, then it's time to buy another one. Those are my thoughts anyways. Thanks for sharing! Kind regards, Eric Dee.
A large diameter pool noodle works good for repairing the D-104 mics - it has a 1 inch hole for the new Crystal cartridge and a piece of felt from the craft department and if your D-104 gets weak most of mine were just the electrolytic cap gone bad.
Not sure mike covered this but the max voltage you can use for those boards without burning them up is 5.5 volts, they will except as low as 3 volts. Two to three AA batteries will work great.
I used that exact same amp for my station. I’ve used the mic gain to reduce the input into the radio. What size variable resister did you use? I mounted it in a box with a home made 12v to 5v regular and switching to flip between 4 different radius. The a PR20 boom mic with a foot switch. It’s hard to get the mic gains right to except that amount of gain even with the amp set to 40db.
the hammertone blue turner plus two i have has a stock round aluminum foil diaphragm over a crystal element in it and made for radio mosty for the old tube radios like the 23 courier etc. which my father in those days dealed in couriers he had the 23 black and chrome like in you other video and the blue and chrome 23 plus he used in the car a gold color royal plus some fanons 23 ch walkie talkie and a transistor courier 4 ch pocket scanner, a fanon metal cone pa loudspeaker, courier was the higher end to the fanon kinda like mercury vs ford in cars
hello Mike first of all I wanna say thanks for the video's you do, they are great. I have a question about a connex 3300 HP if to could help me it is not transmuting or receiving. also the talk back is very low on it, if I use a Popsicle sticks and drag it on the solder side it gets louder could it be just a cold joint. thanks in advance
Mike ; I saw your Turner Microphone video and was wondering how the Adafruit compression AGC board compares to the older tuner circuit. I haven't seen either circuit, but I would venture to guess that the Turner is based upon a JFET transistor to a few discrete output stage, whereas the Maxim IC probably is Op Amp based. How would you compare the sound qualities of each ? - Also I was comparing the characteristics of the Maxim MAX9814 to the Analog Devices SSM2167 which has a variable compression feature. What do you think of this part ? Thanks, Steve !
Just out of curiosity where did you mount the element with respect to the circular logo plate; can that interfere with the audio getting to the element? Or did you mount it back away from the grill?
It's pretty much centered but it's deep enough back into the housing that it has no problem picking up sound. These things are VERY sensitive. If you were to set it to 60db gain I don't think it would have a problem picking up a mouse fart at 50 paces.
Thank you for the reply, Mike. I might have misunderstood that part in the video, I thought that you added that extra switch because of the missing abillity to close the connection on receive on rx chain in the radio :) Have a nice weekend :)
It had one switch assembly that is made up of two separate switch's. One for PTT and one to disconnect the audio line when in receive. The second switch assembly I added was used to disconnect the battery in receive.
i tried to use one of these on a cb radio and all I could get it to do was squeal like crazy! but on just a speaker it workded like it should. can any one tell me what i'm doing wrong?
The type of switches they used in vintage Turner, Astatic and most other microphones were probably used because that's what they had back then. They are also extremely reliable. They just never seem to go bad. Unlike micro switches which I have had to replace because they failed.
Adafruit.com. Just search it and it will pop up quickly. It’s a very popular site. I should buy stock there, I’ve bet I’ve spent two grand there in the last year.
No, not really. There is a big difference between AGC, compression, expansion, DRC, companders, etc. It would take a book, a big book to cover all the differences between all of the different types of audio signal conditioning. There are many good articles on audio processing on many of the professional audio engineer websites.
AGM CHIP...CAN YOU INSTALL IT IN A MIDLAND 5001Z. RADIO... ...WHAT'S UP WITH STOCK MIC ON 5001Z RADIO???? 1000 OHMS MIC....YOU HOOK REGULAR MIC TO IT AND VOICE VOLUME FALLS FLAT ON FACE........MIKE FROM MINNESOTA
Incredibly beautiful microphone, today everything is so plastic, disposable. Without a preamplifier, this microphone must have been very uncomfortable, you have to talk to it very closely. This board is so cheap and replaces a modern microphone for hundreds of dollars.
The comment about channel 6 std brain, the duck that posted that can’t talk on the bowl. He has small balls so he wants you to think he has a big brain. Pls don’t repeat some of the nuts comments on what people on channel 6. It’s the only channel that’s kept CB radio manufacturers in business.
