Vac11

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #20 on: March 24, 2019, 03:09:40 PM »
Pcbs fit in ISK BM-80 style bodies (pronomic scm1, Banzai's km84 bodies).


Vac11

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #21 on: April 08, 2019, 04:47:34 AM »
I built second S52 microphone. Thank you Piotr for great design and all tips. For this mic I used 10pF C0G feedback capacitor for lowering the output of microphone. In C1 position I choosed 3n3F cap and in C2 1nF capacitor. R3=100M and plate R6  resistor 200K. Im going to build another two microphones.

Stock BM80 (and also Pronomic) capsule sounds a little bit "harsch" compared to Maiku SDC capsule. Cant recommend Maiku SDC capsules more. Capsules from Banzai´s KM84 body kits fit on ISK BM80, Pronomic SCM-1 bodies...

Here some detailed photos:













« Last Edit: April 08, 2019, 06:02:43 AM by Vac11 »

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #22 on: April 08, 2019, 06:49:23 AM »
great ! what's that mod switch on your two lower PSUs ?

Khron

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #23 on: April 08, 2019, 07:08:27 AM »
I think i can just about make out "Omni", "Card" and "Fig8" there, so... You do the math ;)

Hint: That likely doesn't work with these SDC's, though ;D

great ! what's that mod switch on your two lower PSUs ?
Khron's Cave - Electronics - Audio - Teardowns - Mods - Repairs - Projects - Music - Rants - Shenanigans

Vac11

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #24 on: April 08, 2019, 07:13:08 AM »
Khron is right.

Lower two PSU´s are for my two M49c microphones. Working great. Same psu pcbs. I added only different connector and 3 position 1 pole switch for switching cardiod, omni and fig8. Just simple voltage divider with two 1M resistors. Sorry for misunderstanding and little off topic.
« Last Edit: April 08, 2019, 07:23:42 AM by Vac11 »

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #25 on: April 08, 2019, 07:13:49 AM »
Hint: That likely doesn't work with these SDC's, though ;D
therefore my question !

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #26 on: April 08, 2019, 07:17:06 AM »
nice on thanks ;)

GraemeWoller

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #27 on: April 08, 2019, 07:07:53 PM »
That looks like awesome fun to build! I've been thinking about putting a tube in one of mine for a while and this makes me feel like I need to get my arse into gear and join in the fun!! Nice job!

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #28 on: June 22, 2019, 05:32:36 PM »
Hey there !
I've just started building a pair of those mics. Only part missing is the plastic cone that connects to the capsule. I don't know how it's called so i have no idea where to source them... Any clues ?

Vac11

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #29 on: June 22, 2019, 06:13:27 PM »
What mic body are you using? I used white plastic cone from pronomic scm 1.


Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #30 on: June 23, 2019, 05:19:50 AM »
I'm using pronomic capsule and body as well but i don't have the original circuit nor plastic cone (i bought capsule and body only on ebay). So i should buy 2 pronomics and savage them just for those plastic parts ? Is there no other way around? :/

Vac11

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #31 on: June 23, 2019, 06:50:18 AM »
Oh... Try contact Banzai. Maybe he have some spare. I dont know store selling those parts separately.

GraemeWoller

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #32 on: June 24, 2019, 07:01:52 PM »
I second this. I've never seen them sold anywhere separately, but Banzai may be able to help.

Maybe there's an opportunity for someone to make "Audiophile Grade After-Market Pointy Sproingy Bits"  ;D


Oh... Try contact Banzai. Maybe he have some spare. I dont know store selling those parts separately.

Winetree

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #33 on: August 01, 2019, 06:32:19 PM »
where can I get a pair of PSB's

Vac11

Re: S52 - Small Diaphragm Condenser Tube Microphone (5840, NT10/3)
« Reply #34 on: August 02, 2019, 01:31:13 AM »
Hi,

i have them stock. Mic pcbs and also PSU pcbs suitable for this microphone.
PM me if you are interesting in.

M.