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 INDEX FILE
 for a
 poor man's handwritten HTML page, Hi!! Startpoint for: A radio schematics oriented document server Go directly to the Quick Jump menu at the bottom 
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 for lots of PDF files about hardware used in the NRD-515 and in my own designs.  | 
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for some utilities to work with old LAYO1 and ORCAD for DOS. All the work you find in the above links has been made with it!  | 
| Click on this lighthouse to see | 
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some NDB / beacon information | 
| You can view some local beacon photographs and read my old "heard" list over there | 
|    but now for download available over here: Lots of Sunshine oriented documentation and add-on hardware info 
 
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The following is available in Dutch only, original articles referring to in   | 
  
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 Alle rechten en copyright van alle vroegere producten van AMROH en uitgaven van voormalig "De Muiderkring " zijn tegenwoordig in handen van    Bureau Belper. Mochten bepaalde zaken zoals Dr. Blan opnieuw uitgegeven worden dan kunt u die daar bestellen!  | 
 Some local Dutch fun, click on this historic picture to see more from Dr. Blan!  | 
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Again some words in Dutch:  Dit wordt de tijdelijke rustplaats van de hersenspinsels van Walter Geeraert - PE1ABR. This place will become the temporary resting place of some of my brain-waves  | 
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   UGH!, caught during research Click on address (or pigeon) for email NEW email on my own domain! (address for technical stuff): pe1abr@pe1abr.nl  
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 Almost 100 ferrite manufacturers are shown Cloned and crippled versions of my Ferrite page: (If too slow or won't load: click PDF capture) 
 And a copy with official permission: Hefei Shirui Electronic Technology Co.,Ltd. Anhui Shirui Electronic Technology Co.,Ltd.  | 
Quick jump menu  | 
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| NRD-515 doc's | BC-Tune mod pics | NDH-515 mod pics | NDH-518 mod-1 pics | NDH-518 mod-2 pics | |
| NWG-515 VFO pics | NRD-515 - PDF page | NRD-515 mainsmod | NCM-515 contr. pics | New 5101 MEM-chip | |
| John Kolb copypage | 455 kHz filtertest | More JRC Info | Radiohobby page | Layo1 and Orcad | |
| EPROM page | 
empty slot | 
PE1ABR's anthology | 
Active aerial | Beacon DX info | |
| W&G SPM-30  backlight option  | 
Fake D-cell  NiMh batteries  | 
RF sniffer probes | 
Screened mains current transformer | 
Simple wideband EMC up-converter | 
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| Diode/LED/Zener  test box  | 
A NON-standard  ESR meter  | 
Capacitor leakage current test box | 
Audio booster for  Racal RA-17  | 
RS232 optical interface | 
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| Inductor page | World Ferrite Manufac. | FERRITE INFO | Ferrite measurements | Ferrite Video page | |
| Attenuator page 5x -10 dB PI-network  | 
The EMC page | Ferrites from AliExpress  | 
OPAMP NL | Varicap test module | 
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Snelle Start NL-menu  | 
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| Dr. Blan start | LOT LMG-01 | Proton DMM02 | Heathkit IT-1121 | Condensator lektest Checker NL | |
| Varicap test module | 
OPAMP NL | Ferrites from AliExpress  | 
Pignose Ferrites from AliExpress  | 
Hoe te scannen + Oma | |
| De BAL lamp | De Aardweerstand meetbrug | RTTY hoekje | Het VERON hoekje | Walter's FDISK2!! bootsector virus  | 
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| De Exidy Sorcerer Computer  | 
455 kHz start NL | Barend H. boekjes | FERRIET INFO NL | FERRIET metingen NL | |
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index.htm by Walter - PE1ABR - 2025-09-12  |