Something New! | New D-104 Preamp with Compressor and Noise Gate

[@monstersdoexist]

Thanks for that! I have been experimenting with D-104's thru the years as well. Having little luck obtaining one with an original crystal element that still works, I tried the Electret replacements too, but find them to be flat and muddy. I tried a 600 ohm element out of a cheap $9 dollar Superstar hand mic purchased online and it provided an amazing amount of clear audio using the original D-104 amp board. I am looking forward to trying your method.

[@kkristopher7413]

This is a great idea. I use rack for audio, but this is a great thing for this microphone. The D104 is hard to beat.

[@roberthayes6329]

Never had a D-104 amplifier go bad, alot of mc320 elements go bad because of environment-operator issues. All my D-104's sound perfect the way they are. Nice to see someone making stuff.

[@teddiehl8116]

I have

[@Mike-bt8ct]

Thanks for the video! I hope to get started on mine soon 👍

[@chadtrahan3262]

Wiring: Green to J1 square pad Yellow to J1 round pad Red battery to + pad Black battery to G pad White to out pad Black to S pad Brown to G pad Violet to SHDN pad D-104 with both PTT's (side of neck and bottom base). Is this the correct wire orientation?

[@brettfinsbury8545]

Did that wiring configuration work?

[@stevewaechter7759]

The ebay and etsy listings are out of stock. Are these available?

[@Haxsaw67]

does your kit come with installation instructions?

[@UDX-21]

I would like to purchase one myself. UDX 21 S.C.

[@14KiloWhisky]

It should sound a lot better than stock one! Always too much treble and pinched 😆

[@roughrider3772]

Are the wires coming off the electret module connected directly to the board or can they come off the terminal strip where the electret mic is already connected? Also same thing with the mic wires coming into the D104 base, directly to pre amp board or they can come off the terminal strip too? Already have JP1 soldered for using a 9v battery. Using a TUG8 stand with 4 wire pin and side neck squeeze bar.

[@ab9te534]

@@roughrider3772 electrically as long as the connections go to the correct place there is no reason you can't use the terminal strip

[@MrHawkei67]

Wiring one up for a friend. Not sure if i have the brown, black violet wires in the right spot. Wiring: Green to J1 square pad Yellow to J1 round pad Red battery to + pad Black battery to G pad White to out pad Black to S pad Brown to G pad Violet to SHDN pad D-104 with both PTT's (side of neck and bottom base). Do those wirings sound right?

[@brettfinsbury8545]

Did that wiring configuration work?

[@jasonatkin6787]

I always thought electrets didn't require a polarizing voltage, but did require a preamp for most uses? Also...Is the resulting impedance presented by this board too low to use this with vacuum tube equipped gear?

[@ab9te534]

Most Electret elements require a voltage to power the internal amplifier circuit that is in them. There are some though (like what comes with the BM-800) where the amplifier is separate from the element. This has a low output impedance but with the addition of one resistor the output voltage is increased enough to work with a vacuum tube type radio

[@ZzedZed]

i made a similar but much simplified verson for a local cb'rs 104. i used a 741 op-amp

[@14KiloWhisky]

Electret element is a diy or something available in aftermarket ? 😎 it sounds good

[@ab9te534]

Electret element is off the shelf part not custom.

[@14KiloWhisky]

@@ab9te534 Ok 👌

[@daletrumble428]

Trying to figure out where the red and black wires connects

[@calescapee9642]

I want 2 of these boards please. They aren't available on eBay right now. Any idea of when you'll have more ready or would it be safe to say after the Holidays?

[@ab9te534]

I will have more available after Thanksgiving :)

[@calescapee9642]

@@ab9te534 Roger that . Thanks.

[@minibikemadman]

are you still making these ??

[@MrGame31373]

when back in stock?

[@2000freefuel]

Forget the compressor, I want an ALL-PASS FILTER in THERE!

[@ab9te534]

A little bit of phase rotation ey? I have considered it.

[@2000freefuel]

@@ab9te534 AYE! Phase Rotation was the secret sauce when my Grandfather was employed in the broadcast Industry.

[@popcorn913.]

You need to make more

[@ab9te534]

I will have some more available in about 2 to 3 weeks.

[@aaronreid8962]

Any luck on getting more boards made I need 2

[@ab9te534]

@@aaronreid8962 I do have more in stock now!

[@charleswells9682]

Wow! Just checked and they are reported as out of stock. Must be a very popular item. I would like at least 2 - are you planning to make more?@@ab9te534

[@viper926dave]

Hi are you still selling these preamp boards please let me know thanks Dave

[@ab9te534]

Hi Dave. I am still making them. Will probably be about 2 weeks before I have more available.

[@viper926dave]

​@@ab9te534thank you for responding that sounds good I'm off work right now I was hit by a truck 4 weeks ago and I'm looking for things to do while I heal up

[@trevorlaurin7842]

how much are these boards

[@TM-gv6zv]

How do I go about getting one?

[@ab9te534]

There is a link to it in the video description

[@street_legal_go_kart7356]

Bad @$$

[@AJ-te1ot]

is the D104 1000 ohm or 500 ohm? Is somebody knows this

[@ab9te534]

The element itself is very high impedance. Closer to the Megohm range. If the MIC has a preamp board though then it is a low impedance output