- Joined
- Jul 15, 2009
- Messages
- 2,301
Just a sneek peek and an entry on the D-M269b i will put everything now and cut the grease soon enough ,
All the info here : http://www.groupdiy.com/index.php?topic=49675.0
Everything went smooth but i the End In did not realized the installation of the trim pot the way it was installed first would be too much shaky
it is really important to not install R10 as suggested in the build at first
When everything else is installed except the trim pot and R10
----> install R10 with some creative bending to clear about 1/4 of an inch on the side to clear the trim pot and then trim pot can be soldered close enough to the pcb so it will not wiglle when adjusting. ,
The very last Picture in the Build is an example
Note : R14 = 100K.
Schematic: https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a04517.pdf
Overall connection: https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a0454a.jpeg
Another Piece of advice : when soldering the Tube to the Turret make sure you use the gravity in your advantage so the turret does not comes out of the hole when heating.
Note : Not in BOM Styroflex Capacitor 100pf/630V and Stryoflex Capacitor 560pf/630V
The Safety Manual and Considerations.https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a0455a
U67 Mic part : http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=83ad963d23
M269 b or C option http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=6bb38c7d28
PSU : http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=532017ac2f
The connection trough the socket board is made with the pre existing lead from the component ( Do not cut them until the bridge connection is actually made )
Cleaning the boards : Get Clean Isopropyl alcool with a tooth brush then with another tooth brush rinse out with distilled water and then blow with air.
To insert the isolation pin bore the hole a little with a 1/16 drill bit but do not drill trough or shave a little bit of teflon arround the pin
Deposit a Generous amount of solder in the turret, So when it is time to solder the tube leads the turret will be morelikely to stay in place ,Beware when soldering the tube leads
Cut the extra trimmer pin flush.
All the info here : http://www.groupdiy.com/index.php?topic=49675.0
Everything went smooth but i the End In did not realized the installation of the trim pot the way it was installed first would be too much shaky
it is really important to not install R10 as suggested in the build at first
When everything else is installed except the trim pot and R10
----> install R10 with some creative bending to clear about 1/4 of an inch on the side to clear the trim pot and then trim pot can be soldered close enough to the pcb so it will not wiglle when adjusting. ,
The very last Picture in the Build is an example
Note : R14 = 100K.
Schematic: https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a04517.pdf
Overall connection: https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a0454a.jpeg
Another Piece of advice : when soldering the Tube to the Turret make sure you use the gravity in your advantage so the turret does not comes out of the hole when heating.
Note : Not in BOM Styroflex Capacitor 100pf/630V and Stryoflex Capacitor 560pf/630V
The Safety Manual and Considerations.https://cdn.groupbuilder.com/groupdiy/u/39511/58d1402a0455a
U67 Mic part : http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=83ad963d23
M269 b or C option http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=6bb38c7d28
PSU : http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=532017ac2f
The connection trough the socket board is made with the pre existing lead from the component ( Do not cut them until the bridge connection is actually made )
Cleaning the boards : Get Clean Isopropyl alcool with a tooth brush then with another tooth brush rinse out with distilled water and then blow with air.
To insert the isolation pin bore the hole a little with a 1/16 drill bit but do not drill trough or shave a little bit of teflon arround the pin
Deposit a Generous amount of solder in the turret, So when it is time to solder the tube leads the turret will be morelikely to stay in place ,Beware when soldering the tube leads
Cut the extra trimmer pin flush.