NOS (New Old Stock) 5R4GYA/B CEI vintage electron tubes These 5R4GYA/B CEI are NEW and supplied in original box. PRICE FOR ONE TUBE 5R4GYA/B CEI Tested with AVO MkIV Please for test result look photo or ask , thank you. Test result could be different from a tube-tester to another one. What you see is what you get! Valvole vintage 5R4GYA/B CEI Le valvole 5R4GYA/B CEI sono nuove e fornite in scatola originale Il prezzo indicato è per UNA valvola 5R4GYA/B CEI Testate con AVO MkIV Gentilmente per il risultato del test guardate la foto o chiedete, grazie Il risultato del test potrebbe essere diverso da un prova valvole all’altro. Se state cercando altri tipi di valvole chiedete, grazie. Provengono dalla mia collezione di valvole d’epoca. Quello che vedete è quello che riceverete. NOTE: IMPORTANT for WORLDWIDE eBayer: I ship this item from ITALY and I ship worldwide.If you need to buy others tubes , please contact me to know the correct shipping cost, thank you.You are Welcome!rereandcollectables @ yahoo dot com IMPORTANTE per eBAYER ITALIANI (Italian eBayer only):Spedisco questo oggetto dall’Italia con Raccomandata o Corriere Espresso in base alla quantità.Nel caso foste interessati all’acquisto di altre valvole , gentilmente contattatemi per conoscere le corrette spese di spedizione, grazie.Per qualsiasi ulteriore informazione sono a vostra disposizione.rareandcollectables @ yahoo punto com For Germans eBayersPlease if you need to to pay in Euro by Bank Transfer or Paypal contact me , thank yourareandcollectables @ yahoo punkt com
5R4GYB RCA NOS Tube Röhre Lampe TSF Valvula Valve Valvola 진공관 真空管 电子管
La valvolaRCA 5R4GYB è NOS e fornite in scatola non marchiata. rareandcollectables @ yahoo punto com. Spedisco questo oggetto dall’Italiacon Raccomandata o Corriere Espresso in base alla quantità. rereandcollectables @ yahoo dot com.
Sylvania 5R4GYB Made in USA Amplitrex Tested Qty 1 Matched Piar #3602011-12
Serial No. 3602011. Sylvania 5R4GYB. Tested on Amplitrex AT1000. Amplitrex AT1000 Advance Digital Tube Tester, Hickok 752a tube tester, AVO Type 160. We specialized in thoroughly tested and screened quality, vacuum tubes.
MATCHED PAIR RCA 5R4GYB Rectifier Tubes BRN Base BLK T Plates Side D Get #PR171
Listed here is a previously used MATCHED Pair of RCA 5R4GYB Rectifier Vacuum Tubes from 1960 & 1961 with Brown Micanol Bases, 4 Hole Smooth Black T Plates, Top Side D Getters, 6039 & 61-35 date codes – PAIR #171 (Tube #1050 and #1051) .
Radio tubes One RCA 5R4 GYB NOS and one Sylvania 5U4QU tests strong
RCA 5R4GYB Vintage Tube & Tube Socket
RCA 5R4GYB Vintage Tube & Tube Socket. Condition is “NEW OLD STOCK VINTAGE”.
Hammarlund Marked RCA 5R4GYB Vacuum Tube Tested
RCA 5R4GYB vacuum tube. Marked as “Hammarlund by RCA. Tests 52/50 on TV7 where 40 is minimum for a good 5R4. I am an extra class amateur operator.
GE 5R4GYB Rectifier 1973, 4 Hole Smooth BLK T Plates, Side O Getter #1049
All tubes are tested using a Hickok 752A tester. Minimum or “min” micromhos (Gm) values are per the 752A’s Minimum Mutual Conductance rejection values roll chart for amplifier tubes and amplifier sections of multi-purpose tubes. Similarly, the rejection values for rectifier and detector type diodes are also listed as “min” values. *** Listed here is a previously used GE 5R4GYB Rectifier Tube from 1973 with 4 Hole Smooth Black T Plates, Side O Getter, CH date code – Tube #1049 *** See Test results below and note tested Gm values compared to the “min”. Printing on the tube is mostly intact (see pics). Packed in White Tube Box as original is not available. Tube will be shipped within two business days and shipping is via USPS First Class Mail / USPS Ground Advantage for items weighing less than 16 ounces as these services are about the fastest delivery method anymore without costing an arm and a leg. Multiple tube purchases at one time will allow combined shipping at a discount. Tube will be packed extremely well for safe delivery. TEST RESULTS: Tube #: 1049 Tube Type: 5R4GYB Brand: Manufacturer: GE Mfg Date: 1973 Production Type: 4 Hole Smooth Black T Plates, Side O Getter, CH date code Test Date: 11/11/2022 Grouping: Gm 1: 940 Gm 2: 900 Min 1: 650 Min 2: 650 Leak: No
Sylvania 5R4GYB Vacuum Tubes (2) TV-7 Tested & Guaranteed
Two Sylvania 5R4GYB vacuum tubes TV-7 tested. Minimum value is 40. Check on TV-7 is.
Two(2) TVD/U Tested 1964 RCA 5R4GYB Side Ring/Halo ‘O’ Gtr Tube
Two(2) Dated 1964 RCA 5R4GYB. RCA 5R4GYB Data Sheet Specs: (change dot to a period ‘.’. in the link below). – Black Thoriated thorium Plates. “RCA Electron Tubes” RCA small globe logo. Average RCA Factory new 50/50.