poctop
Well-known member
- Joined
- Jul 15, 2009
- Messages
- 2,305
Hi All, Just finished Building this little magic puck, this is an build example for the M49 in the puck Style, it is my own flavor of the tlm49 conversion I guess ,
I Might be trying to get a hold of a TLM49 or tlm 149 body to see what happens,
It might need a dedicated mic body but for now the puck is ready for offer, and yes it rolls.....
Best ,
Dan,
D-M49c and D-M49b Build Thread .
All the info Here : http://www.groupdiy.com/index.php?topic=49675.0
M49 mic body Available Here :
http://groupdiy.com/index.php?topic=60108.msg762707#new
http://www.groupdiy.com/index.php?topic=52563.0
http://www.groupdiy.com/index.php?topic=53018.0
IMPORTANT:
You Should always have the SHLF Jumper in position in the PSU PCB , this will ensure that your cable shield is tied at both end of the cable and connect to 0V
you Should Also have the 0V star grounded to your case and then from there to you IEC earth ground ,
For More Information on Grounding
https://www.dropbox.com/s/6y121dasm3iw4ba/Sound_System_Interconnection.pdf?dl=0
Cabling connection From PsU https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a053d6.jpg
BOM
Note: missing from the BOM Styroflex Capacitor C1 1000pf, C6 560pf / 630V
PSU 2469 passive
http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=532017ac2f
M49 C or B Mic Parts
http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=f556c18411
For Converting the 5840 Tube to a Triode Tie pin 7-5 Togheter Do not use Pin 4 or Pin 8
5840 Tube Datasheet https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05413.pdf
Schematic: M49C https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05435.bmp
Schematic: M49B https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05446.pdf
M49 Schematic Poctop PCBS 49b and 49c
https://www.dropbox.com/s/ym5f8tur4y0rgw8/49c-round.jpg?dl=0
https://www.dropbox.com/s/wcym8uf65ov84vi/49b-round.jpg?dl=0
Best,
Dan,
PSU Schematic : https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05456.pdf
Note : the Toroidal tranformer secondary is wired in parrallel to get 120V at the input of the psu
The 20Vac traffo for Europe will not fit as per the current BOM please replace it with this one or an equivalent ,
http://www.mouser.com/ProductDetail/Hammond-Manufacturing/186B20/?qs=sGAEpiMZZMvwUzoUXIIvyQPvPmwnNFGyR%2fQB%252b1BzrOY%3d
also The fuse will be 0.1A instead of 0.2 for America
Capsule Connection both version and Floating Scheme B version
Floating Scheme connection For C version
Cardiod Only Switching Point For Full Operation ( Both B and C version) Those 2 Points needs to be bridged For cardiod Only Mode remove Bridge ( S2a and S2b)
The Safety Manual and Considerations.https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a054af
Note: To Operate S2 Cardiod only Switch
I Might be trying to get a hold of a TLM49 or tlm 149 body to see what happens,
It might need a dedicated mic body but for now the puck is ready for offer, and yes it rolls.....
Best ,
Dan,
D-M49c and D-M49b Build Thread .
All the info Here : http://www.groupdiy.com/index.php?topic=49675.0
M49 mic body Available Here :
http://groupdiy.com/index.php?topic=60108.msg762707#new
http://www.groupdiy.com/index.php?topic=52563.0
http://www.groupdiy.com/index.php?topic=53018.0
IMPORTANT:
You Should always have the SHLF Jumper in position in the PSU PCB , this will ensure that your cable shield is tied at both end of the cable and connect to 0V
you Should Also have the 0V star grounded to your case and then from there to you IEC earth ground ,
For More Information on Grounding
https://www.dropbox.com/s/6y121dasm3iw4ba/Sound_System_Interconnection.pdf?dl=0
Cabling connection From PsU https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a053d6.jpg
BOM
Note: missing from the BOM Styroflex Capacitor C1 1000pf, C6 560pf / 630V
PSU 2469 passive
http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=532017ac2f
M49 C or B Mic Parts
http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=f556c18411
For Converting the 5840 Tube to a Triode Tie pin 7-5 Togheter Do not use Pin 4 or Pin 8
5840 Tube Datasheet https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05413.pdf
Schematic: M49C https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05435.bmp
Schematic: M49B https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05446.pdf
M49 Schematic Poctop PCBS 49b and 49c
https://www.dropbox.com/s/ym5f8tur4y0rgw8/49c-round.jpg?dl=0
https://www.dropbox.com/s/wcym8uf65ov84vi/49b-round.jpg?dl=0
Best,
Dan,
PSU Schematic : https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a05456.pdf
Note : the Toroidal tranformer secondary is wired in parrallel to get 120V at the input of the psu
The 20Vac traffo for Europe will not fit as per the current BOM please replace it with this one or an equivalent ,
http://www.mouser.com/ProductDetail/Hammond-Manufacturing/186B20/?qs=sGAEpiMZZMvwUzoUXIIvyQPvPmwnNFGyR%2fQB%252b1BzrOY%3d
also The fuse will be 0.1A instead of 0.2 for America
Capsule Connection both version and Floating Scheme B version
Floating Scheme connection For C version
Cardiod Only Switching Point For Full Operation ( Both B and C version) Those 2 Points needs to be bridged For cardiod Only Mode remove Bridge ( S2a and S2b)
The Safety Manual and Considerations.https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a054af
Note: To Operate S2 Cardiod only Switch