UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Philips 274A

Keith · 25th Oct 2020, 3:37 pm

Hi again Sideband,
Thanks for the response. I would describe the audio as lacking in brightness. Perhaps the inherent regeneration (presumably there must be some to give so much gain) reduces the bandwidth a bit too much. There is no adjustment so it's impossible to say. I did wonder whether the PM24A was a bit weak but it tests out OK on the AVO VCM. I wonder if you explored the inards of the wet electrolytics. Interesting construction!

25th Oct 2020, 3:37 pm	#3
Keith Heptode Join Date: Jan 2003 Location: Tewkesbury, Gloucestershire, UK. Posts: 693	Re: Philips 274A - ugly duckling! Hi again Sideband, Thanks for the response. I would describe the audio as lacking in brightness. Perhaps the inherent regeneration (presumably there must be some to give so much gain) reduces the bandwidth a bit too much. There is no adjustment so it's impossible to say. I did wonder whether the PM24A was a bit weak but it tests out OK on the AVO VCM. I wonder if you explored the inards of the wet electrolytics. Interesting construction! Attached Thumbnails __________________ Keith Yates - G3XGW VMARS & BVWS member http://www.tibblestone.com/oldradios/Old_Radios.htm