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K3LOE Mike

I learned from @dlarc that my surprise new Astatic D104 microphone is powered by a 9 volt battery lol. I am happy to let this poor Rayovac retire at 3.6v. Do we think alkaline is the best chemistry here and not say a lithium ion rechargeable?

The attached picture is an excerpt from the AES Ham Radio Catalog Summer 1994 archive.org/details/aeshamradi

A chrome microphone lies on a red stool. The base of the microphone is open and shows a built-in amplifier circuit powered by a Rayovac 9v battery.
An ad with old-timey looking chrome microphones at the top and an electrified red Astatic logo. Ad is mostly text. Partial transcript follows. Popular Microphones.. ASTATIC D-104-L (left) • The original "super talk power" microphone, a favorite of hams for decades. It's high output and 300-7500Hz response with rising characteristics between 500-4000 Hz, provides maximum intelligibility throughout the voice range. Shock proof cartridge with high-Z crystal element, metal sealed for protection. Solid machined brass parts, heavy mesh grille-all chrome plated 3" dia. x 1⅛"d, 14 oz. $39.95 T-UG9 Microphone stand (right) • Accepts the D-104-L or 1ODA-L heads above. Has a built-in adjustable amplifier with an output impedance that matches most transmitters. Side switch bar for PTT with slide-up clamp for locking down. Height is 8½" w/o head, base is 5½™ diameter. Chrome neck, grey base, 6-wire coiled cable. Requires 9V battery.... $50.00
#batteries#power#microphones
Feb 05, 2025, 04:53 AM·Public·Web
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K3LOE Mike

Bonus points for opinions about using this mic with a Realistic HTX-100 mobile transceiver for 10 meter SSB. Apparently the high impedance is not a problem because of the amplifier circuit, but it's unclear to me if the audio quality is still an issue.

copperelectronics.com/cgi-bin/

www.copperelectronics.comCopper Talk: Microphone 101CB Radio Forum
#HTX100#10meterSSB#Realistic
Public
Mike McCabe

@K3LOE @dlarc I saw this via @dlarc!

I recommend trying a ‘taken-battery’ 9-volt lithium rechargeable- they have a usb-c connector to charge. I think they use an internal charge pump to achieve 9v BUT I can attest that they haven’t added any noise when I used them in my kid’s noise-prone toy guitar amp or effects pedals. (Other similar ones do.)

taken-battery.com/products/tak

taken-battery.comTaken 9 Volt Batteries 4 Pack USB Rechargeable, High Capacity 1100mAh LI-ion Batteries with Type C Charging Cable for Smoke Alarms Detector, Electric Guitar, Microphone
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