Hi All, Just finished Final Testing this microphone, Everything Works as expected and I am incredibly happy with the sounds of this microphone

, Many thanks To Oliver for this Awesome Creation.
and one of the most impressive thing not to say the least this microphone is Incredibly
QUIET with this Ef800 Telefunken tube in it ,
This kit will b able to Drive Ef800 , eF802 and Ef80 Telefunken tubes

Absolutely Love it.
I am opening the Kit to the DIY community as we speak, there is some minor Adjustemet I had to do with the PSU resistance Value
there is notes on the Shared mouser BOM about Those changes. B+
R2 = 6.8ohm 3W
R6 = 4.7 ohm 3W
R11 = 4.7 ohm 3WH+
R1 = 20K 2W
R3 = 20K 2W
R8 = 25K pot.The BOM do not contains the Reed Switch but are available at those location ,
the PCB is designed to support these 2 Reed Relay 24V and 48V, Only one resistor is specifically used on the psu for 24V or 48V relay. Notes are in the BOM as well, Rcoil Relay on the Psu denotes the resistance for either 24V operation or 48V operation.
RS Stock No. 291-9631 Brand RS Mfr. Part No. B48-1A72-BV631 RoHS Status Compliant Catalogue page 1186 Customer reviews (0) Add a review
http://uk.rs-online.com/web/p/reed-relays/2919631/ http://www.digikey.ca/product-search/en?vendor=0keywords=7101-24-1010 Relay Coto PN 7101-24-1010
The Silk Screen will be corrected on the next Batch if Any,
The PCB was specifically design to have package for AMI BV08 Classic Series and AMI T47 Transformer ,
Other transformer can be fitted as well. Here is the 2 Mounting Strategies that will permit the Use of about any transformer.
https://io.groupdiy.com/file/gdiy-2017/u/39511/58d028199435c.zip could not be happier with this Toy,
Thanks Oliver.
Hope you will enjoy,
Best,
Dan,