. QST . Fig. 1 — Schematic diagram and partsCi _- 15-MMf. variable (Hammarlund HF-15). ?:^-45-^amic trimmer (Mallory ST-557-N;^■ one for each band --equ^ed) ^^^^.^^ C« - Sl^it-stator vanabk abmi^ 12^;^^^^ ^^^ f^rtrSter^mSel from each section). Co 0 OOl-M/if- ceramic. S, Co-16; electrolytic. Ri — 1 megohm 3^ — 10,000 ohms, yi _ 1000 ohms, H — 33,000 ohms, Vi — 3300 ohms, H watt. E^Hsits^M?-!turns B & W 3011, tapped 4 SoVc^-Tt^nTB &W 3007, tapped 2 turns from ground end. , ly ^2 tinned ^^ ^c^--^ S -- -22rut-lrn ^-inch diam. No. 12 tinnedwir
. QST . Fig. 1 — Schematic diagram and partsCi _- 15-MMf. variable (Hammarlund HF-15). ?:^-45-^amic trimmer (Mallory ST-557-N;^■ one for each band --equ^ed) ^^^^.^^ C« - Sl^it-stator vanabk abmi^ 12^;^^^^ ^^^ f^rtrSter^mSel from each section). Co 0 OOl-M/if- ceramic. S, Co-16; electrolytic. Ri — 1 megohm 3^ — 10,000 ohms, yi _ 1000 ohms, H — 33,000 ohms, Vi — 3300 ohms, H watt. E^Hsits^M?-!turns B & W 3011, tapped 4 SoVc^-Tt^nTB &W 3007, tapped 2 turns from ground end. , ly ^2 tinned ^^ ^c^--^ S -- -22rut-lrn ^-inch diam. No. 12 tinnedwire, tapped near center. information for the simple , 28 turns B & W 3011 Add Ca50^^^ ^^Tturns B & W 3007 Add a as in S ConS C. M met t™» IP ••nals; see photo. , L3-24 tur;s No. 24 enamel on 3/,.inch iron-slug form (National XR-91).U-4 turns No. 24 or enamel at -Id end of ; J,-Phono jacks (Cmch 81B or two Cmch 81A33_J:trctt^!
Size: 3014px × 829px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, booksubjectradio, bookyear1915
