PhilA Posted May 20, 2020 Author Share Posted May 20, 2020 I bought a keyring (local made, local theme) for my keys. Thought it was nice. Kept losing these keys (recurring theme) so needed something bigger and recognisable to attach them to. Phil LightBulbFun 1 Link to comment Share on other sites More sharing options...
hairnet Posted May 20, 2020 Share Posted May 20, 2020 Link to comment Share on other sites More sharing options...
PhilA Posted May 20, 2020 Author Share Posted May 20, 2020 LOOTENANT DAYUN! LightBulbFun 1 Link to comment Share on other sites More sharing options...
hairnet Posted May 20, 2020 Share Posted May 20, 2020 5 hours ago, PhilA said: I bought a keyring (local made, local theme) for my keys. Thought it was nice. Kept losing these keys (recurring theme) so needed something bigger and recognisable to attach them to. Phil :P Link to comment Share on other sites More sharing options...
PhilA Posted May 20, 2020 Author Share Posted May 20, 2020 2 minutes ago, hairnet said: hairnet, Tickman and Frogchod 1 2 Link to comment Share on other sites More sharing options...
hairnet Posted May 20, 2020 Share Posted May 20, 2020 'A MAN ON THE INTERNET IN DEEP THOUGHT' PhilA 1 Link to comment Share on other sites More sharing options...
hairnet Posted May 20, 2020 Share Posted May 20, 2020 or wondering whats for lunch Link to comment Share on other sites More sharing options...
PhilA Posted May 20, 2020 Author Share Posted May 20, 2020 The Analog Gang BlankFrank, Zelandeth, paulplom and 15 others 9 9 Link to comment Share on other sites More sharing options...
hairnet Posted May 20, 2020 Share Posted May 20, 2020 'wherethefukarewe' 'wassferdinner' Link to comment Share on other sites More sharing options...
somewhatfoolish Posted May 20, 2020 Share Posted May 20, 2020 Torturing the semiconductor with some HV? LightBulbFun and Asimo 1 1 Link to comment Share on other sites More sharing options...
LightBulbFun Posted May 21, 2020 Share Posted May 21, 2020 20 minutes ago, somewhatfoolish said: Torturing the semiconductor with some HV? I think its supposed to be their pet or something such LOL 3 hours ago, PhilA said: The Analog Gang it would be amusing to leave the googly eyes on there for the next person to venture into the radio to discover although I dont think the adhesive would hold up that long in such an environment! Link to comment Share on other sites More sharing options...
PhilA Posted May 21, 2020 Author Share Posted May 21, 2020 31 minutes ago, LightBulbFun said: I think its supposed to be their pet or something such LOL D'ye loik dags? mercedade and LightBulbFun 1 1 Link to comment Share on other sites More sharing options...
PhilA Posted May 22, 2020 Author Share Posted May 22, 2020 14C5 power output tubes arrived. The rest of the stuff that I actually need to start this is sat in a warehouse in New Orleans right now and won't be here until at least tomorrow. Phil Jenson Velcro and LightBulbFun 2 Link to comment Share on other sites More sharing options...
PhilA Posted May 23, 2020 Author Share Posted May 23, 2020 Bag of pieces finally arrived. Rebuilt the main filter capacitor can- I had previously cut the bottom off and gutted it- basically 3 individual big, high voltage capacitors inside. The two chunky ones at the top are double the original capacitance (to help filter more junk off the HT supply of I decide to put a solid state vibrator in) and a little 25V 0.25uF K filter for the output stage. Fully rebuilt the new, upgraded 12V HT supply. It also works. Phil spartacus, Shite Ron, Skizzer and 6 others 9 Link to comment Share on other sites More sharing options...
Zelandeth Posted May 23, 2020 Share Posted May 23, 2020 Sorry if I'm teaching you to suck eggs...but it's worth checking what maximum capacitance the rectifier valve is designed to handle. If it's too large it can overstress the rectifier. PhilA 1 Link to comment Share on other sites More sharing options...
mat_the_cat Posted May 23, 2020 Share Posted May 23, 2020 1 hour ago, PhilA said: Rebuilt the main filter capacitor Most people would replace the radio, a few would replace components, but this is the first time I've ever heard of anyone rebuilding a capacitor. I take my hat off to you! PhilA, LightBulbFun and Skizzer 3 Link to comment Share on other sites More sharing options...
LightBulbFun Posted May 23, 2020 Share Posted May 23, 2020 30 minutes ago, mat_the_cat said: Most people would replace the radio, a few would replace components, but this is the first time I've ever heard of anyone rebuilding a capacitor. I take my hat off to you! seen it done a few times in vintage radio restorations etc now that doesn't make it any less cool tho! its done a lot of the time to keep things looking authentic/athesticly correct etc but another one I have seen is to leave the old electrolytic in place disconnected and tack in some modern replacements underneath but thats less impressive! back about 6-7 years ago when I couldn't walk for about 6 months and as such was bed bound with nothing but a laptop, I binge watched so many of this guy's videos https://www.youtube.com/user/bandersentv PhilA and mat_the_cat 2 Link to comment Share on other sites More sharing options...
PhilA Posted May 23, 2020 Author Share Posted May 23, 2020 36 minutes ago, Zelandeth said: Sorry if I'm teaching you to suck eggs...but it's worth checking what maximum capacitance the rectifier valve is designed to handle. If it's too large it can overstress the rectifier. No, totally valid. It's a .005 1600V, with a 15k resistor in series. Original spec for the rectifier. A lot of people overlook it. Phil LightBulbFun 1 Link to comment Share on other sites More sharing options...
hairnet Posted May 23, 2020 Share Posted May 23, 2020 1 hour ago, PhilA said: Bag of pieces finally arrived Phil apart from this no idea what just happened nice one phil LightBulbFun and PhilA 2 Link to comment Share on other sites More sharing options...
PhilA Posted May 24, 2020 Author Share Posted May 24, 2020 Getting a suntan 0Z4 rectifier tube with the lid removed. The anode has sagged a little and is much closer to one cathode than the other and as such likes to run in half wave with no load. I'll give the spare a try afterward. Phil mat_the_cat and LightBulbFun 2 Link to comment Share on other sites More sharing options...
PhilA Posted May 24, 2020 Author Share Posted May 24, 2020 Volume and tone control. Phil mat_the_cat, Shite Ron, somewhatfoolish and 2 others 5 Link to comment Share on other sites More sharing options...
PhilA Posted May 24, 2020 Author Share Posted May 24, 2020 Been busy tonight. Stopping for now though. BlankFrank, somewhatfoolish, Tepper and 3 others 6 Link to comment Share on other sites More sharing options...
Jenson Velcro Posted May 24, 2020 Share Posted May 24, 2020 Holy smoke (or hopefully not). I haven’t got a clue what’s going on with all this sorcery and witchcraft, but it sure looks impressive. PhilA and mercedade 2 Link to comment Share on other sites More sharing options...
PhilA Posted May 24, 2020 Author Share Posted May 24, 2020 2 hours ago, Jenson Velcro said: Holy smoke (or hopefully not). I haven’t got a clue what’s going on with all this sorcery and witchcraft, but it sure looks impressive. It's fairly straightforward. The thing is broken down into 3 main sections: Red- High voltage power supply. Green- The actual radio part that collects the signal and turns it into something useable. Purple- Power amplification to send the signal out of the speaker. Just like anything electronic or engineering, it becomes more simple the more you break it down. Phil Jenson Velcro, spartacus, BlankFrank and 2 others 3 2 Link to comment Share on other sites More sharing options...
Jenson Velcro Posted May 24, 2020 Share Posted May 24, 2020 Thanks for the explanation Link to comment Share on other sites More sharing options...
PhilA Posted May 24, 2020 Author Share Posted May 24, 2020 It is complete. It even makes noises. Bit more to do yet but that's not bad at all. Phil LightBulbFun, Jenson Velcro, BlankFrank and 5 others 8 Link to comment Share on other sites More sharing options...
PhilA Posted May 25, 2020 Author Share Posted May 25, 2020 Fixed most of the issues. Doesn't sound half bad for 69 years old having had a full heart transplant... Phil Tickman, LightBulbFun, egg and 4 others 7 Link to comment Share on other sites More sharing options...
busmansholiday Posted May 25, 2020 Share Posted May 25, 2020 They built things to last in those days. LightBulbFun 1 Link to comment Share on other sites More sharing options...
STUNO Posted May 25, 2020 Share Posted May 25, 2020 Rubbish music. Needs a bit of Tuba Skinny on there to do it justice. Tomtation 1 Link to comment Share on other sites More sharing options...
hairnet Posted May 25, 2020 Share Posted May 25, 2020 for you stu is mantovani still alive Link to comment Share on other sites More sharing options...
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