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Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
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Old 6th December 2019, 08:27 PM   #51
NicMac is offline NicMac  Italy
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Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
Thanks for the info
It is a bit too wide for the box I have.
Need to think.... another box or another input selector
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Old 9th December 2019, 05:03 PM   #52
alexcp is offline alexcp  United States
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Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
Default Update

All bare boards that have been paid for has been shipped:
Code:
Name		BPPBP	Sel.	64step	16step	Services	Status
brianco		1	1	1	1	SMT soldering
astromo 	1	3	3	0	-		Shipped
Bennyboyph  	1	1	1	1	SMT soldering
cowanaudio	1	0	0	0			Shipped
Quantensprung	1	1	1	1	SMT soldering
Mituisho	1	0	0	1			Shipped
shattered_dream 1	1	1	1	
Morde		1	0	0	1			Shipped
maartn		1	0	0	2	SMT soldering
GfromG		1	0	0	0	SMT soldering
pixelpusher 	0	0	1	1			Shipped
av-trouvaille  	0	1	2	0			Shipped
vasillis 	0	0	0	2	SMT soldering
Johnny Canuck	0	1	2	0			Shipped
toastytoy	1	0	1	0
Mike2		1	0	0	1	SMT soldering
AlphaC		1	1	1	0			Shipped
ergo		0	0	1	1			Shipped
sebbyp		1	1	1	1		
Total		14	11	16	14
Boards with SMT parts soldered are now also available - see photos. I will be sending PMs with payment instructions today.
Attached Images
File Type: png BPPBP PCB.png (287.2 KB, 94 views)
File Type: png BPPBP PCBs selector.png (171.0 KB, 93 views)
File Type: png BPPBP PCBs - 64step.png (298.7 KB, 93 views)
File Type: png BPPBP PCBs - 32 step.png (406.0 KB, 93 views)
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Old 14th December 2019, 12:31 AM   #53
alexcp is offline alexcp  United States
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Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
Default Status update

All orders paid for have been shipped:
Code:
Name		BPPBP	Sel.	64step	16step	Services	Status
brianco		1	1	1	1	SMT soldering	Shipped
astromo 	1	3	3	0	-		Shipped
Bennyboyph  	1	1	1	1	SMT soldering	Shipped
cowanaudio	1	0	0	0			Shipped
Quantensprung	1	1	1	1	SMT soldering
Mituisho	1	0	0	1			Delivered
shattered_dream 1	1	1	1			Shipped
Morde		1	0	0	1			Shipped
maartn		1	0	0	2	SMT soldering	Shipped
GfromG		1	0	0	0	SMT soldering	Shipped
pixelpusher 	0	0	1	1			Delivered
av-trouvaille  	0	1	2	0			Shipped
vasillis 	0	0	0	2	SMT soldering
Johnny Canuck	0	1	2	0			Shipped
toastytoy	1	0	1	0
Mike2		1	0	0	1	SMT soldering	Shipped
AlphaC		1	1	1	0			Shipped
ergo		0	0	1	1			Shipped
sebbyp		1	1	1	1			Shipped
grayblob	1	1	1	1
Total		15	12	17	15
PayPal sent emails with tracking numbers for all shipped orders; let me know if you have not received one.

Last edited by alexcp; 14th December 2019 at 12:33 AM.
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Old 14th December 2019, 11:00 PM   #54
Bennyboyph is offline Bennyboyph  United Kingdom
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Location: Manchester
Thanks Alex!

Just need a nice case and controller for the 64-stepper now...
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Old Yesterday, 12:02 PM   #55
maartn is offline maartn  Netherlands
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The 16-step volume control requires IM06TS relays from TE Connectivity (Axicomm). These seem to be sold out everywhere... Perhaps anyone else also encountered this. Any suggestions for an alternative?
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Old Yesterday, 01:21 PM   #56
alexcp is offline alexcp  United States
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Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
Quote:
Originally Posted by maartn View Post
The 16-step volume control requires IM06TS relays
You can use instead relays with the same footprint from other manufacturers, such as Omron G6K-2P-Y or Panasonic AGQ20T. Part numbers should be:
IM06TS - G6K-2P-Y-DC12 - AGQ20T12 (for 16-step 12V)
IM07TS - G6K-2P-Y-DC24 - AGQ20T24 (for 16-step 24V)

If substituting relays for the 64-step board, keep in mind that PCF8574AT has limiting current value of 25mA per relay and 100mA in total. It drives six relays, so the rated coil current per relay should not exceed 100/6 = 16mA, and therefore the coil resistance must be upwards of 300ohm. IM23TS with its "ultra high sensitive" coil works, but G6K-2P-Y or AGQ20T would have the potential to exceed the PCF8574AT's specifications.
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Old Yesterday, 01:31 PM   #57
outtek is offline outtek
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Join Date: Jan 2017
Hi, any spare set available? Thanks
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Old Yesterday, 02:20 PM   #58
alexcp is offline alexcp  United States
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Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
Yes, boards are available. Bare boards can be shipped immediately; SMT soldering would take a couple of days. I just sent you a PM.
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Old Yesterday, 03:28 PM   #59
maartn is offline maartn  Netherlands
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Thanks! Another question (I am ordering parts anticipating the boards to arrive and doing some soldering during the holidays): did your SMT soldering include diodes D1-D4 on the back of the boards?
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Old Yesterday, 04:09 PM   #60
alexcp is offline alexcp  United States
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Interest in PCBs for Bruno Putzey's Preamp and Hans Polak's relay volume control
Quote:
Originally Posted by maartn View Post
did your SMT soldering include diodes D1-D4 on the back of the boards?
Yes, the diodes are soldered on the back. Note they are not really necessary for the 64-step board, as PCF8574AT has them built in, but I soldered them anyway.
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