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Author Topic: hand mic for ft-101b  (Read 3470 times)
KG6BRG
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« on: September 18, 2012, 07:08:08 AM »

Can someone tell me the Yaesu model number for the original hand mic supplied for use on the 101b?  I want to look for one but cant find a model number.  thanks, cheers.
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AC5UP
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« Reply #1 on: September 18, 2012, 07:37:58 AM »

User Guide:  http://www.radiomanual.info/schemi/FT101B_user.pdf

Look for something like a list of included accessories or packing list.
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KG6BRG
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« Reply #2 on: September 18, 2012, 08:25:29 AM »

Thanks, but I have looked in the service and owners manual, but have not found reference to the hand mic, just the desk style.  Maybe someone that has one can look for a model number.  thanks.
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W9GB
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« Reply #3 on: September 19, 2012, 08:41:01 PM »

I have never seen a "model number", only reference as:  Mobile Microphone for FT-101

LOOKS like this:
http://foxtango.org/ft101/graphics/Microphone%20Mobile%20Yaesu.JPG

SCHEMATIC diagram for microphone
http://foxtango.org/ft101/graphics/FT-101%20Microphone.jpg
« Last Edit: September 19, 2012, 08:48:02 PM by W9GB » Logged
KG6BRG
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« Reply #4 on: September 20, 2012, 06:19:18 AM »

I have never seen a "model number", only reference as:  Mobile Microphone for FT-101

LOOKS like this:
http://foxtango.org/ft101/graphics/Microphone%20Mobile%20Yaesu.JPG

SCHEMATIC diagram for microphone
http://foxtango.org/ft101/graphics/FT-101%20Microphone.jpg


Thanks, that's what I've come up with too.  I don't how can a mic be sold or supplied with no identifiable model number.  Oh well, I'll just try to find one and hope it is really an original for the 101 series.  cheers and thanks again.
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W9GB
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« Reply #5 on: September 20, 2012, 11:30:24 AM »

Quote from: KG6BRG
I don't how can a mic be sold or supplied with no identifiable model number.
You have to remember the TIME (era) in the early 1970s that the FT-101(b) was introduced and sold.

That OEM microphone (Japanese mfg.) was found to various imported Japanese CB radios,
and as a replacement microphone sold at Lafayette, Radio Shack and Radio/TV shops for CB radios in 1960s/1970s.
Standalone CB only shops lasted only through 1970s CB Craze --
neighboorhood cellular phone / build your own PC stores during 1990s is most recent modern equivalent.


I started radio (SWL -> Amateur; FM radio broadcast) in late 1960s/early 1970s.
Japan in 1960s was what China is today -- flood of inexpensive electronics imports.  Quality improving (Japan) over a 20 year period.
Some radios were copies of US designs, others were new and innovative designs using all Asian parts.

w9gb
« Last Edit: September 20, 2012, 11:34:58 AM by W9GB » Logged
W8AAZ
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« Reply #6 on: September 24, 2012, 11:57:14 AM »

I have an old hand mic for the FT-101 series and the data plate only says dynamic microphone, 50K Imp. Japan on it. So you will be looking for a hi Z mic for it, ideally. Or an amplified mic, perhaps. A crystal or ceramic element may work, as the dynamic is just a low Z element and a stepup transformer. Not knowing the actual input impedance of the rig, if it is not at least a megohm or two, it may roll off the lows a bit with a ceramic or crystal.  Maybe not a bad thing altogether, for SSB.  Ask someone how well a non-amped D-104 works on that rig and it may be comparable to a handheld type.  A Shure 444 or maybe a 450 in the hi-Z position is very hard to beat for a desk mic on those radios.
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AC5UP
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« Reply #7 on: September 24, 2012, 12:54:50 PM »

Agreed........... I had a Hi-Z Shure 444 on an FT-901 that worked exceptionally well, wouldn't surprise me if the audio chain was a cousin to the 101 series.

BTW:  The mic pictured earlier in this thread looks identical to the hand mic that shipped with the FT-901.
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KG6BRG
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« Reply #8 on: September 24, 2012, 06:31:49 PM »

I have an old hand mic for the FT-101 series and the data plate only says dynamic microphone, 50K Imp. Japan on it. So you will be looking for a hi Z mic for it, ideally. Or an amplified mic, perhaps. A crystal or ceramic element may work, as the dynamic is just a low Z element and a stepup transformer. Not knowing the actual input impedance of the rig, if it is not at least a megohm or two, it may roll off the lows a bit with a ceramic or crystal.  Maybe not a bad thing altogether, for SSB.  Ask someone how well a non-amped D-104 works on that rig and it may be comparable to a handheld type.  A Shure 444 or maybe a 450 in the hi-Z position is very hard to beat for a desk mic on those radios.

Thanks for the info, I found that out also.  I'm currently using a Shure 444 with good results.  It always worked good on my 520's and works good on the 101B too.  Does Shure have a hand mic with the same element @50K, if you  know?  thanks again. 
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W9GB
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« Reply #9 on: September 24, 2012, 06:37:01 PM »

Shure's Reintroduced Classic (Vintage Iconic) microphones.
http://www.shure.com/uploads/brochure/upload/25/us_pro_brochure_mics_classic.pdf

Shure has microphones that can work, here us their web page:
http://www.shure.com/americas/products/microphones

The Shure 527 is the most popular, current production mobile radio microphone.
http://www.shure.com/americas/products/microphones/other/527-voice-communication-microphones

Guitar Center retail stores are Shure microphone retailers,
 but the Shure 527 is not normally stocked by them.

Here is the Shure 527 User Guide
The 527B is standard Shure magnetic cartridge (dynamic).
The 527C is specific for radios, military & commercial telephone systems that support CARBON microphones.
http://www.shure.com/uploads/user_guide/upload/452/us_pro_527b_ug.pdf

ALL modern microphones are Lo-Z output.
Hi-Z inputs found on older radios and public address (PA) amplifiers
are handled through usage of Z matching transformers.
===
Shure did reintroduce the 1940s "520" model, as the 520DX for amplification of Harmonicas -- as the Green Bullet.  
It has Hi-Z output, BUT the restyling removed the old desk stand attachment (volume control).
http://www.shure.com/americas/products/microphones/classic/520dx-green-bullet-harmonica-microphone
« Last Edit: September 24, 2012, 07:00:30 PM by W9GB » Logged
KG6BRG
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Posts: 119




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« Reply #10 on: September 25, 2012, 05:44:20 AM »

thanks for the Shure info.  scott.
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K1CJS
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« Reply #11 on: September 27, 2012, 07:19:59 AM »

I have an old hand mic for the FT-101 series and the data plate only says dynamic microphone, 50K Imp. Japan on it. So you will be looking for a hi Z mic for it, ideally....

I have the FT-101 EE, and have the same microphone that was pictured in the photo link provided.  The former owner of the rig told me that he had to replace the element at one point and used a low Z mike element with a transformer for the replacement.  It works well as far as I can tell from reports that I got from contacts I made.
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