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#1
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On 2/25/15 11:05 PM, Dave Platt wrote:
I recently spent a bit of time laying out some general-purpose prototyping boards, for building small analog and RF circuits in the "ugly" and "Manhattan" traditions. They're similar to what you can make by cutting isolated circular pads into a piece of double-sided PC board stock using a core drill chucked in a Dremel... Very nice, Dave! I think I'll order a few of these for my tronics hacking. So the pads are, what, like 4 or 5 mm diameter? |
#2
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I recently spent a bit of time laying out some general-purpose
prototyping boards, for building small analog and RF circuits in the "ugly" and "Manhattan" traditions. They're similar to what you can make by cutting isolated circular pads into a piece of double-sided PC board stock using a core drill chucked in a Dremel... Very nice, Dave! I think I'll order a few of these for my tronics hacking. So the pads are, what, like 4 or 5 mm diameter? If I recall correctly, the smaller board has 6mm pads with 1mm between pads, and the larger board has 8mm pads with 2mm between pads. They aren't as "tight" as a small-scale Manhattan board... I decided to err on the side of flexibility (plenty of room for several component leads) and compatibility with my own fat fingers :-) |
#3
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On 10/03/15 15:43, Eric Weaver wrote:
On 2/25/15 11:05 PM, Dave Platt wrote: I recently spent a bit of time laying out some general-purpose prototyping boards, for building small analog and RF circuits in the "ugly" and "Manhattan" traditions. They're similar to what you can make by cutting isolated circular pads into a piece of double-sided PC board stock using a core drill chucked in a Dremel... Very nice, Dave! I think I'll order a few of these for my tronics hacking. So the pads are, what, like 4 or 5 mm diameter? ========== For simple ugly construction circuits I use single or double sided PCB ,drilling holes for "grounded" components to be soldered perpendicular to the board serving as stand-offs for non-earthed components ie semiconductors resistors ,inductors ,capacitors. If more "non-grounded" connections are required I solder 10MOhm resistors as stand-offs in drilled holes. The resistance is high enough for most RF & non-RF circuits serving as isolators. The advantage of this method is that component interconnections can be made very short . I sometimes also use the diamond dust covered cylinder drill bits (diameter 5mm) to create small isolated islands (drill bits available from the G-QRP Club for members . Frank GM0CSZ / KN6WH |
#4
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"highlandham" wrote in message
... I sometimes also use the diamond dust covered cylinder drill bits (diameter 5mm) to create small isolated islands (drill bits available from the G-QRP Club for members . Highly recommended, but always use from within a drill press unless you wish to skate all over the surface of the board :-( |
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