03-07-2025, 09:10 AM
(This post was last modified: 03-07-2025, 09:14 AM by DrStrangelove.)
I don't like veroboard much.
I found a matrix board version of the Stewart tape recorder design in a biscuit tin in the garage.
Point to point & much easier, with no requirement for a twist drill to remove connections.
One of my classic design cockups in the letraset days had an inverted 7660 negative bias generator due to some sort of brain fade.
Fortunately it was an 8 pin TO-99 and apart from looking like a spider, worked ok, which is more than might be said for the thing it was in.
About 20 or so years ago,on a contract in the Forest of Dean, the company had just acquired a milling machine for pcbs.
I wasn't around long enough to find out if it worked or not.
I also recall a UK pcb company who produced a pcb with no pads without bothering to ask if that was the design.
And another bunch who supplied us with "tested" 4 layer pcbs, some of which had shorts on the databus due to whiskers, and another that had a short from Vcc to Gnd due to a misplaced drilling. All good clean fun.
I've always wondered what "tested" meant. Checking for shorts didn't seem to be in the program.
I found a matrix board version of the Stewart tape recorder design in a biscuit tin in the garage.
Point to point & much easier, with no requirement for a twist drill to remove connections.
One of my classic design cockups in the letraset days had an inverted 7660 negative bias generator due to some sort of brain fade.
Fortunately it was an 8 pin TO-99 and apart from looking like a spider, worked ok, which is more than might be said for the thing it was in.
About 20 or so years ago,on a contract in the Forest of Dean, the company had just acquired a milling machine for pcbs.
I wasn't around long enough to find out if it worked or not.
I also recall a UK pcb company who produced a pcb with no pads without bothering to ask if that was the design.
And another bunch who supplied us with "tested" 4 layer pcbs, some of which had shorts on the databus due to whiskers, and another that had a short from Vcc to Gnd due to a misplaced drilling. All good clean fun.
I've always wondered what "tested" meant. Checking for shorts didn't seem to be in the program.
