Neumann M49 Clone : Build Thread Puck Style (TLM49 Conversion To M49 b-c)

[thomasdf]

I use a lot of heat shrink and salvaged wire insulation on resistors legs in my PTP builds. Once it's all enclosed in the body, my main concerns are how it sounds and how long it will last rather than the looks. You can also hot glue the caps to the board and use the legs as floating turrets... whatever works Good luck !

 

[SparkleBear]

Trying to get standoffs for my build. I'm seeing that its 105mm from bottom of pcb to top of capsule mount. I'm seeing the 40mm on the build thread graphic on pg1 here. Does this 40mm mean from base of bottom pcb to the height of the tube? The height of the middle pcb (upper if not using a pcb for capsule mount deck)...

If the capsule mount is 58mm and the total height should be 105mm then that leaves me with 47mm to distribute between the traffo deck pcb and the driver deck pcb... Assuming that longer metal standoffs are the 40mm, that only leaves 7mm for clearance to top deck which doesnt make sense..

Anyone shed some light on this?

Thanks so much

 

[HerbertR]

Anybody have any alternative ideas for the teflon insulated pins? Expensive when building a pair of mics.

I have replaced the 1.91mm /0.27" Teflon pins on some builds with a cheap 2mm OD and 1mm ID Teflon tube from Ali and a 1mm thick silver coated solder wire, 1mm solder Nails....You have to carefully enlarge or scratch the diameter of the circuit board a little bit until the stiff Teflon tube goes through and is secure. Then I put the 1mm thick silver wire, or "through hole 1mm leg" from a large capacitor...through it. Since the inner diameter of the Teflon tube is also squashed, the 1mm silver wire, solder nail or what else...goes through the Teflon tube quite hard. Really easy. Holds much, much better than those expensive Keystone Teflon turret pins, and 100's for two beers or so.....
Example on an Opic PCB, or this Pencil Mic build...

PTFE Tube:
€1.78 | PTFE tube ID0.6 0.8 1 1.2 1.5 1.6 1.8mm F4 F46 PTFE FEP PFA Capillary Insulated Hose Rigid Pipe Temperature Corrosion Resistance
https://a.aliexpress.com/_ExgJ17Q

Solder Nails as example from Reichelt Electronics:
https://www.reichelt.at/at/de/shop/produkt/loetnaegel_1mm_100-er_pack-15321

...because we are not Millionaires....

 

[rock soderstrom]

I have replaced the 1.91mm /0.27" Teflon pins on some builds with a cheap 2mm OD and 1mm ID Teflon tube from Ali and a 1mm thick silver coated solder wire, 1mm solder Nails....You have to carefully enlarge or scratch the diameter of the circuit board a little bit until the stiff Teflon tube goes through and is secure. Then I put the 1mm thick silver wire, or "through hole 1mm leg" from a large capacitor...through it. Since the inner diameter of the Teflon tube is also squashed, the 1mm silver wire, solder nail or what else...goes through the Teflon tube quite hard. Really easy. Holds much, much better than those expensive Keystone Teflon turret pins, and 100's for two beers or so.....

Very good idea and implementation!

If necessary, these guys and a short piece of Teflon cable insulation will also work if you need to do it quickly and have nothing else. The conical design provides extra grip.