Bonsaimaster
Well-known member
- Joined
- Apr 17, 2013
- Messages
- 218
I hope to get some help before starting this project. Sorry for the newbie questions but I have tried to collect all the data that is out there. But some missing pieces do exist. Any help would be great!
Will be purchasing two Barry Porter NETEQ boards for a Dual mono unit from PCB Grinder.
Will use PCB 1815 to power the two boards. I will be building a USA version and need suggestion for a 2x18V toroidal transformer. Can I use this Dual Primary (115V/230V) Toroidal 2X25 30VA Power Transformer?
http://www.hairballaudio.com/shop/product_info.php?cPath=33&products_id=37
I will provide all the information I get or have to anyone.
1. The "current" BOM and board overlay seems to have some mistakes. I am trusting the schematic on this one. Please any corrections welcomed.
Ex.
Board overlay shows
R6-10K
R7-10k
Schematic shows
R6-10R
R7-10R
2. Can someone verify the BOM I made.
http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=7cd513ac77
I have not included the R500 and the NE 5322 they will come from other sources.
I have swapped out resistors and caps as per HARPO excel sheet so I can use rotary switches.
3. I am unable to find a source for a 10-47pf variable capacitor. Any suggestions?
4. Does anyone have suggestions for rotary switches? My possible suggestions included.
For the
Q Band
http://www.ebay.com/itm/180931177387
1pc,1 pole 12 positions PCB Rotary switch NEW,1P12L
FREQ
http://www.ebay.com/itm/251292325032
2pole 24 step Rotary Switch Attenuator Volume Control DIY Pot Potentiometer New
FREQ with selfing
I have no source
GAIN
http://www.ebay.com/itm/251292325032
2pole 24 step Rotary Switch Attenuator Volume Control DIY Pot Potentiometer New
HIPASS
http://www.ebay.com/itm/170880281315
1,2 pole 6 positions PCB Rotary switch NEW,2P6L
I don't know much about rotary switches. Therefore excuse my ignorance if these suggests are wrong.
5. Will be using switches for bypassing each channel should I use (sorry newbie questions) DPDT ON-ON?
6. Any suggestions on how to wire the bypass switch for each channel?
Thanks for any help in advance!
Will be purchasing two Barry Porter NETEQ boards for a Dual mono unit from PCB Grinder.
Will use PCB 1815 to power the two boards. I will be building a USA version and need suggestion for a 2x18V toroidal transformer. Can I use this Dual Primary (115V/230V) Toroidal 2X25 30VA Power Transformer?
http://www.hairballaudio.com/shop/product_info.php?cPath=33&products_id=37
I will provide all the information I get or have to anyone.
1. The "current" BOM and board overlay seems to have some mistakes. I am trusting the schematic on this one. Please any corrections welcomed.
Ex.
Board overlay shows
R6-10K
R7-10k
Schematic shows
R6-10R
R7-10R
2. Can someone verify the BOM I made.
http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=7cd513ac77
I have not included the R500 and the NE 5322 they will come from other sources.
I have swapped out resistors and caps as per HARPO excel sheet so I can use rotary switches.
3. I am unable to find a source for a 10-47pf variable capacitor. Any suggestions?
4. Does anyone have suggestions for rotary switches? My possible suggestions included.
For the
Q Band
http://www.ebay.com/itm/180931177387
1pc,1 pole 12 positions PCB Rotary switch NEW,1P12L
FREQ
http://www.ebay.com/itm/251292325032
2pole 24 step Rotary Switch Attenuator Volume Control DIY Pot Potentiometer New
FREQ with selfing
I have no source
GAIN
http://www.ebay.com/itm/251292325032
2pole 24 step Rotary Switch Attenuator Volume Control DIY Pot Potentiometer New
HIPASS
http://www.ebay.com/itm/170880281315
1,2 pole 6 positions PCB Rotary switch NEW,2P6L
I don't know much about rotary switches. Therefore excuse my ignorance if these suggests are wrong.
5. Will be using switches for bypassing each channel should I use (sorry newbie questions) DPDT ON-ON?
6. Any suggestions on how to wire the bypass switch for each channel?
Thanks for any help in advance!
