Search found 914 matches
- Thu Jun 04, 2020 9:07 pm
- Forum: Assembly instructions for the Cylinder V3 clock kit
- Topic: Help!
- Replies: 28
- Views: 59324
Re: Help!
The current specified was more of a maximum value to alert anyone seeing 10s of mA to switch off quick. Some meters won't catch the initial inrush either.
- Tue Jun 02, 2020 7:50 pm
- Forum: Assembly instructions for the Cylinder V3 clock kit
- Topic: UK USB power supply for Batch2 PCBs
- Replies: 2
- Views: 13554
Re: UK USB power supply for Batch2 PCBs
The right-hand end cap has a groove machined for the cable to fit. All PCBs since 2016 have been directly soldered as the cable can be hidden better than the original USB plug sticking out of the side..
- Tue Jun 02, 2020 4:12 pm
- Forum: Assembly instructions for the Cylinder V3 clock kit
- Topic: PCB assembly discussion
- Replies: 4
- Views: 16298
Re: PCB assembly discussion
USB sockets haven't been used since 2016, I didn't like the plug sticking out of the side. Connection is covered in page 3 of the PCB assembly instructions, strain relief is a channel cut into the wood end piece to hold the wire but if you have the clock only you'll need to use a tiewrap to hold it ...
- Sat May 30, 2020 1:05 am
- Forum: OXO board assembly instructions
- Topic: Board PCB
- Replies: 16
- Views: 43024
Re: Board PCB
That would be well worth doing - I've wanted to make a couple of battery-powered devices but there are so many safety issues posting and using lithium battery packs, one reason the clocks use a backup capacitor is to avoid the inevitable 'does it contain batteries' question at the post office..
- Sat May 30, 2020 12:57 am
- Forum: Assembly instructions for the Cylinder V3 clock kit
- Topic: Adding GPS
- Replies: 20
- Views: 52746
Re: Adding GPS
Not just yet but an ESP-based mod is in the works. Easiest way to just set time and date is to emulate the NMEA time packet but there is code in there to allow any memory location to be modified by serial data over that input - one of the things that caused problems at time with the IR clock-to-cloc...
- Thu May 21, 2020 1:36 pm
- Forum: Relay 5-tube
- Topic: PCB Assembly Discussion
- Replies: 7
- Views: 29036
Re: PCB Assembly Discussion
Is the base coil getting warm? You should see 40-60Vp-p across the secondary so it looks like there's nothing driving it. What's the power being drawn by the base and is there any other sign of activity from the base LEDs?.
- Mon May 04, 2020 5:37 pm
- Forum: OXO board assembly instructions
- Topic: Board PCB
- Replies: 16
- Views: 43024
Re: Board PCB
Pleased to hear that. For future faultfinding, yes the IC provides the drive signal but each pad has its own driver transistor or there would be too much variation when pieces were removed. R2 was intended as a dropper if the supply voltage ended up being more than 5V, in this version it didn't so i...
- Mon May 04, 2020 5:32 pm
- Forum: OXO board assembly instructions
- Topic: Piece base PCB
- Replies: 18
- Views: 31074
Re: Piece base PCB
It's much lower than that. If you need any spares let me know as the piece PCBs are still availabe.
- Fri May 01, 2020 2:15 pm
- Forum: OXO board assembly instructions
- Topic: Piece base PCB
- Replies: 18
- Views: 31074
Re: Piece base PCB - SMD version
Tin the cut end of 2 pins then put a blob of solder on the pads shown here: Looking from under the nixie, pins are counted clockwise from the gap with the first to the right of it being pin 1. Make four of these for use with 4x IN-7A/IN-7 for the '+'. pin 2 is connected to the pad marked 'HV' and p...
- Fri May 01, 2020 2:11 pm
- Forum: OXO board assembly instructions
- Topic: Piece base PCB
- Replies: 18
- Views: 31074
Re: Piece base PCB
D5 isn't used as the final design didn't need that many multiplier stages. It's an air cored transformer similar in operation to a flyback transformer. The exact voltage will depend on the spacing but should be around 40-50V at D1. By the time it reaches the nixie you will have 200-250V, this will d...