Anyone else care to review this circuit-prГіs AND/ OR negatives? Again, I like the ruggedness Гіf this rig ГЎnd the reality that it can be BY significantly the greatest 'explosive device shelter class' xtal arranged I've seen so much. IHMO you should become capable to change between collection or paraIlel tuning on thГ© main, but probably it's tГі complex or thГ©re isn't enough room (etc). The collection tuning/coupling w/rotary change to gnd seems a bit odd and 'overdone',but may become Fine. OK, allows break up this a single straight down: I was CONSIDERING placing a jumper between the container disc and D-4 cool. Hey Dan and Frank, Lookup CR-1 Crystal radio and click the site. Put pictures of your sets in your posts, talk about the component parts of crystal sets. Need an education on the Heathkit CR-1 Discussion of all levels of crystal set building and use.Heathkit GR-1075 AM/FM clock radio condensed manual, operation, adjustments, instructions, schematic & parts list (excludes assembly instructions) Re-Mastered reprint.See 'Information change' for further contributors. Dimensions (WHD) 5.75 back button 2 a 3 inch / 146 x 51 x 76 mm Notes Price in first year of sale 8.00 $ Enthusiasts' costs External resource of information Konrad Birkner Source of information Model page created. Form Tablemodel, with any shape - general. Power out from Design: Crystal clear Receiver CR-1 - Heathkit Brand, Heath Co. Information Power kind and voltage No Strength required Loudspeaker - For headphones or amp. Heath Corporation 12 months: 1958 Group: Detector-Radio (Crystal or diode, without tubes/transistors) Main rule Crystal or Solid Condition Detector Tuned circuits 1 Was outlet(s i9000) Influx bands Put out just (MW).

Heathkit cr-1 crystal radio performance