Doug has a receipt dated 1961. Doug also provided these photos. He writes:

"The D25b is similar to the D25 but it has plain clock hands and the orange/red goblin logo is dropped from later models. The clock cannot start in reverse. The teapot is the same, and there is a small lip on the teapot side of the platform. The kettle has conical screw feet. It is still on the right, but the transfer tube is attached with a knurled nut and the flat plug lead now has a twin external earth.

I have two D25b Teasmades and they each have an early & late type clock cover. The early type - smooth edge, bulbous shape is fitted on model no. 305941 and the later type - flat edge with slightly pointed centre is fitted on model no. 321518. So the change occurred some time during the 15577 models produced. If your serial no. is smaller or greater you will know which type to use, otherwise it is a guess. I think they are interchangeable.

One weekend in 2002 I went to a boot fair (every Sunday on  6 floors of a multi - storey car park) and spotted a Goblin teapot and old box. On looking inside it was a D25b, complete but very shabby. The asking price was £5 but reduced to £4 due to broken teapot spout (it still pours). I snapped it up at once. I think it was unused for many years and stored in a shed. It was dirty and damp, the insides had cobwebs & dead insects etc. The leads had been gnawed. However a good clean up and sympathetic rewire using cloth covered flex from an old iron and it's back to its former glory. Kettle descaled and teapot bleached - time to plug in.

I must admit the two switch system had me puzzled for a while - I thought the element had failed. However I got it in the end:

Both up = off
Both down = on alarm mode
LH down RH up = tea now (when contacts closed)
LH up RH down = lights on

As the lights are common wired over both switches, it is possible to have 'tea now' (when alarm contacts closed) which puts the lights on, then switch them off with the rh switch. A feature not available on later models. This is because the D20 series does not have a separate 'tea now' circuit which bypasses the alarm, unlike later models. The alarm contacts close about 12 minutes before the alarm setting and remain closed for approximately 40 minutes after. If the Teasmade is set up but not switched on (everybody does this occasionally!) then switching on during the times shown will activate the kettle circuit. However, once the alarm contacts have reset open, then switching on will only cause the lights to come on. The alarm contacts will close again 12 hours later but once the water is discharged the kettle circuit is protected by the platform rocker switch and teapot sensor.

Anyway....after much switching up & down the kettle started to warm up and 10 mins later - lights (orange) sounds - buzzzzzz and a nice cup of tea.

It is now my pride and joy. It is different to the one sent in by Grace, more like the D25 without the goblin."

The picture at the bottom shows the D25b with its box and instructions.

The D25b was also available in a Queen Anne version.