In the 30s John Logie Baird was playing with his version of television. This was an electro-mechanical system and consisted of a metal disc with holes punched ...
seth
A customer came in the other day, whilst I was repairing a 1950s record player. I actually had a 78rpm 10” record on the machine testing it. The customer, in ...
We all love our electronic techie toys, be they, phones, PCs, labour saving gadgets, TVs and so on. Especially now that these sorts of commodities are so ...
Some time ago, I wrote about a chap called Mr. Strowger, inventor of the automatic telephone exchange. He set the way to enable us to call other phone users, ...
Short wave radio . . . - - - . . . So, HF radio (High Frequency), what’s that all about? Well, we all have heard about amateur radio and Morse code etc. HF ...
The nicer side of my working life is repairing vintage guitar amplifiers, for two reasons I guess. One, I like repairing equipment for people that appreciate a ...
The NHS RansomWare virusWell, what the hell was that all about? We recently saw how the NHS and many other companies and computer users were brought to their ...
The TV Remote Control Well, I have written about many interesting developments and engineers relating to the electronics industry, but this article is about ...
Just for light relief, I have started writing down classic “What customers say”The below is all true.I am not sure if the Spanish sun affects people, but I ...
A simple thing as plugging the telly into the mains socket is a given to most of us. But, what goes on behind getting the 230V AC power to the socket? I hear ...
Last month, I wrote about Gordon Welchman. Unsung, and who was instrumental for some of the most incredible code breaking work at Bletchley Park during WW2. ...
Anyone who reads my ramblings knows that I admire engineers who made a big difference to our lives, yet seem to have never made the big press. Gordon Welchman ...
- « Previous Page
- 1
- …
- 16
- 17
- 18
- 19
- 20
- …
- 22
- Next Page »
Hi John.
Many thanks for the post. Always good to have feedback. If you have some stories, would be great to hear them!
Take care.
Hi Frank.
Many thanks for the email. Glad your working life was good at BSR! I have always had a soft spot for the products and amazed how the equipment was sold globally.
Now…I have run out of the toggle springs used in the TD1 and 2 tape decks and some turntables. So, if you have 100 or so under the bed, ill make you an offer!
No tengo transformador. Puede ser posible rebobinarlo o reemplazarlo con un transformador similar al utilizado en Fender. Hágamelo saber. Verificaría la razón por la que falló.
Hi
Yes, always make a couple of small mods to make them sound a little less BBC Home Service. I reduce the value of the the caps C17 and C19. This makes the set sound quite HiFi, whilst retaining the natural warm sound. Let me know if you need a diagram.
Hi John.
Thanks for your kind comments and taking the time to post.
Well, of course I agree with you 100%. It really pisses me off when I see equipment on fleabay saying without valves. The idea is to keep the equipment running in good order for the next generations. I wont be able to take it with me. Luckily, I am not hard up enough to sell off a couple of PX4s to stay alive! This gram outplays most of the sets from this period. It sounds very HiFi. Playing LPs that were recorded in the early 50s, Dance bands etc the sound is first class. Plus a new magic eye tuning indicator. What more could you want?
Nice to have your post on my site.
Take care. Seth
23€ plus IVA (21%), plus postage. Let me know your full address and post code and I can advise payment method and proforma is required.
—
I asked myself the same question.
Hi. These sets suffer badly with dry solder joints. The fault you have is within the IF stage, as you have no video and sound. I suggest you tap around the main PCB and check connections from the tuner. Not knowing your skill level, press the main board and surrounding areas with a plastic rod and see if you can bring the fault condition off and on. You can then narrow the area.
Ciao. Sono consigliate varie modifiche a seconda dei numeri di serie. Tuttavia, ho le informazioni nel mio ufficio e non tornerò fino al nuovo anno. Allora posso inviarti le informazioni. Se funziona bene e devo essere più sincero con te, lo lascerei stare. L’unica cosa che potrei fare è sostituire i 4 set di diodi di polarizzazione. Se questi falliscono, i VFET saranno danneggiati e queste parti non saranno più disponibili.
Someone has asked for it, but will conform. If he does not want it, I will drop you a line and it’s yours.
I know how you feel!!
Not at the moment. Sorry
Could not agree more! Cheers
Could not agree more!