Archives June 2015

Saturday, 20th June 2015 - 15:36:16

Philips DLS10 Delay Tube 01

I was given this interesting tube. The Philips DLS10. It's a thermal delay tube designed to delay the switch on of the HT (High Tension) section so that tubes are at temperature before HT is applied. This one is operational.

Saturday, 13th June 2015 - 13:39:20

Bluetooth FM Transmitter

I created this Bluetooth FM tranmitter thingy from two cheap eBay items. Combining them reduces the crap hanging around in the car and means just one cord freeing the USB socket for charging.

Monday, 8th June 2015 - 22:46:59


Cleaned off the last of the cloth insulation on the secondaries. I also scraped back the enamel and tinned all the leads. I am poking 6.3V AC down the high current secondaries on this Ferguson PF181 transformer that I am working on to try and determine where the HT and Primaries are. This is going to be a great transformer to use once I've made it safe. 5V @2A, 12.6V centre tapped @2A. 6.3V @2A. 770V centre tapped HT (385V).

Monday, 8th June 2015 - 15:51:46


Trying to clean off my work area. Lots of bench scapings to sort out.

Tuesday, 2nd June 2015 - 20:48:56


The PCBs I ordered came back today. These are a prototype TSP-14 socket for GR-211 nixie tubes. They make use of Mill Max solder-in ferrules. This is part of a group nixie clock project.

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