MKV B25839 & TT maxon motor, orders please!
### This is the order list ###
Status Wed 10/30/02, 14:10 CEST
All,
where to get Siemens/Epcos MKV B25839 capacitors ?
where to get a decent maxon motor and a pulley for it?
Well, i have agreed to supply both at my cost. Please email me privately for your orders.
I get the maxon motor at our local surplus store; the motor will cost US$10 including any work i have on it e.g. for removing the gear wheel from the shaft without damage or glueing on the pulley.
I haven't got the prices for pulley yet.
Shipping from Germany is expensive; i recommend small package uninsured for $8 surface or $20 airmail. Insured parcel can go up to US$55 if airmail and priority is chosen.
This post is my bulletin board for collected orders. I will announce who has ordered and which quantity.
Consider folks, the 1µ is 20.5mm dia x 75mm length, the 0µ47 has same dia and 44mm length.
MKV:
B25839:
1µ0 / 700V:
dice45: 20x
RichardJones: 4x
setriode: 4x
PeterDaniel: 20x
kasra: 2x
Petter: 20x
GaryB: 8x
harvardian: 8x
AKSA: 4x
wiligruen: 20x
0µ47 / 700V ac:
dice45: 24x
setriode: 4x
peterr: 6x
GaryB: 8x
harvardian: 8x
AKSA: 4x
0µ33 / 700V ac:
dice45: 8x
setriode: 2x
Peterr :2x
0µ22 / 700V ac:
dice45: 6x
0µ1 / 700V ac:
dice45: 10x
order closed for all MKV and order placed today. I take all quantiies for granted. Within the next 12 hours i may be able to still increase ordered numbers, i.e. to accept additional orders.
maxon 2028.949-61.121-025
(48V for nominal 6440 rpm; the motor is NOS before i remove the gear wheel):
dice45: 5x
peterr: 3x
peted: 2x
Brett: 2x
gilid: 4x
planet10: 2x
maxon 2028.941-61.121-025
(36V for nominal 8850 rpm; the motor is NOS before i remove the gear wheel):
petter: 2x
dhaen: 2x
GaryB: 3x
difool: 2x
buglehead: 2x
infinite baffle: 2x
maxon 2028.945-61.121-025
(18V for nominal 8010 rpm; the motor is NOS before i remove the gear wheel):
pedroPO: 4x
maxon 2028.xxx
(18 or 36 or 48V)
mgreene: 2x
Availablity:
2028.949 (48V/6440rpm): 18x, 0x left
2028.941 (36V/8850rpm): 13x, 0x left
2028.945 (18V/8010rpm): 4x, 0x left
some left, type not guaranteed.
I feel urged to tell you the motor diameter is 28mm, not maxon standard (26 or 29 mm). I recommended to put the commutator end of the motor in an airtight capsule. So this capsule will have dia 28, hinthint, better order one more as spare part, compared to maxon retail price list they are dirt-cheap.
News:
All different motors behave as expected; samples has been tested with success.
orderlist for motors may be still open for a few more; a second lot showed up. But i will not guarantee which one will come, anyhow i will not mix it up with orders already placed.
Pulleys:
dice45: 3 kits
peterr: 1 kit
peted: 2x
Brett: 2x
gilid: (4x)
ultranalog: 4x
petter: 1 kit
planet10: 2x
dhaen: 2x
GaryB: 3x
buglehead: 1 kit
infinite baffle: 1 kit
pedroPO: 1 kit
difool: 2 kits
mgreene: 2 kits
Variac: (no quantity specified)
Pulley:
Effective diameter will be 12 mm. To allow for different shaft diameters and to enable mounting free of brute force and to ensure proper concentric running, i have decided to go with a collet chuck clamping for the pulley. This means: should the motor be faulty, noisy, simply worn, the pulley can be recycled for another motor without damage for both motor and pulley. Pulley will have a collet chuck for 3mm and for 2mm with it.
I am considering to make separate pulleys for flat belt (e.g. magnetic tape) and round belt (big o-ring or string) fitting on the same collet chuck.
the collet chuck solution is what i settle on; I got no objections.
I also settle on separate pulleys for flat belt and round belt; in fact one pulley kit per person should be sufficient, maximum two if some of you want a replacement kit.
Option: pulley with roughened run surface for voicing (some may sonically prefer a smooth and slippery pulley and others a rough and slip-free pulley)
Delivery time depends on the pulley.
I hope to have access to CNC machining for the pulley within 3 weeks from 10/18/02. Sorry, my buddy is behind schedule. I am pushing him everyday but i am not making promises concerning the schedule.
120 Hz Strobe flasher, quartz crystal stabilized, complete with housing:
dice45: 1x
hifidaddy: 1x
peterr: 1x
120 Hz Strobe flasher, kit with perforated PCB:
Still wondering if others than GaryB have read my posts conerning the strobe flasher.