About Radio ... Part 18 Output Stage and Duoble Diode Triode by Andy Davies

In this eighteenth video 'About Radio' I talk about the output stage and double diode triode A.F. Amplifier. The radio I'm using in this series is the GEC model BC5645. This is the last video covering the various aspects of this specific radio, I will no doubt be making others circuit. I've had a lot of fun and a lot of frustration making the videos, the frustration comes from Photoshop Premier Elements 9 video editing software which can be a lot of fun to play with but it frequently shuts down with the message telling me that it's stopped working. Remember that you can kill yourself messing with electricity so don't do anything dumb! If this helps you please let me know. Kind regards ... Andy gw0jxm Here's a link to the circuit diagram http://www.radio-workshop.co.uk/servi... (I trust the site where the diagram is) ~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~ In this series of 'About Radio' I want to show you a circuit diagram for a radio and talk you through what each component is there for. Here's the full link to 'About Radio ... Part 1. Removing the chassis.'    • About Radio ... part 1  Removing the chass...   Here's the full link to 'About Radio ... Part 2. Data sheet and DC components.'    • About Radio ... Part 2 Data sheet and DC c...   Here's the full link to 'About Radio ... Part 3. HT smoothing.'    • About Radio ... Part 3 HT smoothing by And...   HD Link to part 3    • About Radio ... Part 3 HT smoothing by And...   Here's the full link to 'About Radio ... Part 4. AC ripple on the HT DC.'    • About Radio ... Part 4  AC ripple on the H...   HD link to part 4    • About Radio ... Part 4  AC ripple on the H...   Here's the full link to 'About Radio ... Part 5. VHF input stage.'    • About Radio ... Part 5  VHF input stage by...   HD link to part 5    • About Radio ... Part 5  VHF input stage by...   Here's the full link to 'About Radio ... Part 6. Grid bias & tank circuits.'    • About Radio ... Part 6  Grid bias & tank c...   HD link to part 6    • About Radio ... Part 6  Grid bias & tank c...   Here's the full link to 'About Radio ... Part 7. A closer look at the tank circuit.'    • About Radio ... Part 7  A closer look at t...   HD link to part 7    • About Radio ... Part 7  A closer look at t...   Here's the full link to 'About Radio ... Part 8. Intermediate Frequency.'    • About Radio ... Part 8 Intermediate Freque...   HD link to part 8    • About Radio ... Part 8 Intermediate Freque...   Here's the full link to 'About Radio ... Part 9. Ratio Detector AVC feature'    • About Radio ... Part 9 Automatic Volume Co...   HD link to part 9    • About Radio ... Part 9 Automatic Volume Co...   Here's the full link to 'About Radio ... Part 10. Ratio Detector, AF Detection'    • About Radio ... Part 10 Ratio Detector, AF...   HD link to part 10    • About Radio ... Part 10 Ratio Detector, AF...   Here's the full link to 'About Radio ... Part 11. Cleaning the variable capacitor'    • About Radio ... Part 11  Cleaning the vari...   HD link to part 11    • About Radio ... Part 11  Cleaning the vari...   Here's the full link to 'About Radio ... Part 12. The wave change switch'    • About Radio ... Part 12. The Wave change s...   HD link to part 12    • About Radio ... Part 12. The Wave change s...   Here's the full Link to 'About Radio ... Part 13 inside the IF transformer'    • About Radio ... Part 13 Inside the IF tran...   HD link to part 13    • About Radio ... Part 13 Inside the IF tran...   Here's the full link to 'About Radio ... Part 14 Local oscillator for the AM Frequencies'    • About Radio ... Part 14 Local oscillator f...   HD link for part 14    • About Radio ... Part 14 Local oscillator f...   Here's the full link to 'About Radio ... Part 15 the Automatic Volume Control line'    • About Radio ... Part 15 Automatic Volume C...   HD link for part 15    • About Radio ... Part 15 Automatic Volume C...   Here's the long link to 'About Radio ... Part 16 IF Amp scope traces'    • About Radio ... Part 16 IF Amp scope trace...   HD link to part 16    • About Radio ... Part 16 IF Amp scope trace...   Here's the long link to 'About Radio ... Part 17 The double Diode Triode A.F. Amplifier    • About Radio ... Part 17 The double diode t...   HD Link to Part 17    • About Radio ... Part 17 The double diode t...   If you're interested in this series of videos then I recommend that you also take a look at Rick McWhorter's channel. This is the full link to one of the videos by Rick McWhorter    • The Vacuum Tube Shortwave Radio   (AllAmericanFiveRadio) Do download his book, it's free but the information is priceless! Rick has put a huge amount of effort and a lifetimes worth of experiences into his videos, I think you find them interesting and entertaining, but be warned, you'll get hooked! I have. In my videos, inevitably there will be things that I forget to mention and maybe some things I get wrong, please feel free to comment and put me right if I go wrong.