Transistor Museum Store IBM Germanium Experimental PNP ...
Your Transistor Museum IBM germanium transistor is from an experimental 1959 lot of alloy junction transistors produced to evaluate new production and test equipment. These are PNP alloy junction types and have similar characteristics to IBM types 25 and 33, which are general purpose PNP alloy junction transistors. IBM germanium transistors ...
TINA/Spice: Need Germanium Transistor models. How do I ...
First post. I am learning Tina-Ti. I need to add a few Germanium transistors to the library. After searching, I found a .LIB file for LTSpice, Here is the contents of that file (Germanium.LIB) Thanks in advance for any help you can muster. *Germanium.lib .MODEL 1N60 …
ElectroSmash - You can Build the Perfect Germanium Fuzz Face
The first FF's manufactured in the UK used the AC128, a 45-165 Hfe European germanium PNP transistor, cheap/common at that time (later on replaced by the Newmarket NKT275). After this early germanium years, the production switched to the modern, temperature independent, and more stable silicon transistors like the BC108C, BC109C, and BC209C.
: germanium transistor
NTE Electronics NTE158 Germanium PNP Transistor for Audio Power Amplifier, to-1 Case, 1A Collector Current, 32V Collector-Emitter Voltage. 3.9 out of 5 stars. 5. $10.35. $10. . 35. Get it as soon as Wed, Sep 22. FREE Shipping on orders over $25 shipped by Amazon.
Electrochemical Response for Spherical and Rod Shaped WO 3 ...
LTO and NMC were cycled between 1V to 3 V, and 2.7 V to 4.2 V at 0.1 C for the first 5 cycles and 1C for the following cycles, again back to 0.1 C. 1 (a,b) shows the XRD patterns and Raman spectra ...
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Thales- večer pozriem doma to 7NUčko,ak najdem tak je tvoje. To vrčanie vo zvuku je tým, že nemáš tienenie na vstupe,je to brum, ktorý pri hudbe nepočuješ,ale môže to byť aj nefiltrovaným napájacím napätím.Zistíš to tak, že ten zosilovací mudul pripojíš na 12V batériu a musí to zmiznúť.Ináč ten modul je max na 5W sinus, ale skreslenie do 10%, /GDčka boli tuším ...
2SB337 datasheet(1/1 Pages) ETC | GERMANIUM PNP ALLOYED ...
GERMANIUM PNP ALLOYED JUNCTION LOW SPEED SWITCHING AUDIO FREQUENCY POWER OUTPUT : 1 List of Unclassifed Manufacturers: NTE121: Germanium PNP Transistor Audio Frequency Power Amplifier : 1 2 NTE Electronics: NTE104: Germanium PNP Transistor Audio Frequency Power Amplifier : 1 2 NTE Electronics: NTE105
Elektuur 236 1983-06 - Scribd
Elektuur 236 juni 1983. Dutch elektor magazine. Energiemeter. Antenne omschakelaar. Audio-koppeling. Ontkoppeling., Morse en telex. Programmeerbare voeding. Spektrum-uitsturingsmeter. Schakelkanaa... by ben4612 in Taxonomy_v4 > Computers, electronics, y schematics
simple quasi-complementary Germanium PNP transistors | All ...
Hello guys i've found some old germanium transistors (ASZ15) and i would like to build an amp with them, nothing too complex, just a amp with that germanium sound just i don't know where to start, i want to create a simple (using stuff that i can recover form old things) quasi complementary (they're both PNP) amp, any ideas? i can't even found a datasheet about them!
Vintage Radio and Electronics. Germanium Transistors
A site for the novice or established collector/restorer of Vintage Radio sets and Electronics.Valve (tube) and Transistor with information/projects and technical help . For the Radio Constructor we have an archive of Vintage Circuits (schematics) to build
Alloy-junction transistor - Wikipedia
The germanium alloy-junction transistor, or alloy transistor, was an early type of bipolar junction transistor, developed at General Electric and RCA in 1951 as an improvement over the earlier grown-junction transistor.. The usual construction of an alloy-junction transistor is a germanium crystal forming the base, with emitter and collector alloy beads fused on opposite sides.
Transistor Museum Store Construction Projects Point ...
CBS 2N38 Germanium PNP. Alloy Junction Historic Transistor The 2N36, 2N37 and 2N38 are germanium alloy transistors, intended for use as general purpose audio amplifiers. These devices were made on the same manufacturing line and were sorted and labeled, based on gain – the 2N36 had the highest gain and the 2N38 had the lowest gain.
Redesign Germanium Transistor Circuits, Part 1
Germanium transistor projects intrigued experimenters from the early days in the 1950s until the early 1970s. In the Seventies, the higher-grade silicon devices began to take over the hobby market. Hobbyists adapted, by attempting germanium-to-silicon conversions. Often, the germanium circuits didn't cooperate. Several difficulties occurred.
Germanium Transistor Assortment 20 pcs NPN PNP hfe Fuzz ...
20 pcs Germanium Transistor Assortment incl. 20 pcs Sockets PNP: 3AX31A, 3 pcs 3AX31B, 2 pcs 3AX31C, 2 pcs 3AX31D, 2 pcs 3AG1D, 2 pcs 3AG22, 3 pcs 3AX81A, 2 pcs NPN: 3BX81A, 2 pcs 3BX81B, 2 pcs 20 pcs 0.1 pitch Transistor Sockets Specifications: 3AX31A - PNP transistor, AF low power amplifier. Replaceable-slightly different: 2SB70, 2SB71, 3AX31 ...
Germanium Transistor for sale | eBay
2 EACH VINTAGE RCA 2N586 GERMANIUM TRANSISTOR NOS. $5.00. $4.00 shipping. Only 1 left! NOS 2N1309- MST. - GERMANIUM PNP- SI - GOLD LEADS. $7.50. $4.45 shipping. or Best Offer.
Texas Instrument mid-1960's germanium pnp TO5 data lookup ...
Texas Instrument mid-1960's germanium pnp TO5 data lookup from TI part #. Would anyone have either vintage TI semiconductor data from the mid-1960's, or a cross-reference handbook, that identifies two pnp germanium TO5 metal can bjt's with TI part # 650859-3 and 651236 ? Those bjt's are in a Wurlitzer organ reverb module from circa 1965.
DAE Symposium on Nuclear Physics, Proceedings
E. Intermediate energy nuclear physics Top; E1. Reduced isospin dependent cross section and elliptic flow in heavy-ion collisions, Suneel Kumar, Rajni, Sanjeev Kumar, Rajeev K. Puri 476: pdf: E2. Energy of vanishing flow: mass-isospin dependence, Sakshi Gautam, Aman D. Sood, Rajeev K. Puri 478
The Range - Germanium Treblebooster kit, 18,50
The Range is a treblebooster based on the legendary Dallas Rangemaster. It has the same features but some addons. It works with a germanium PNP transistor and uses a toggle-switch to switch between different input capacitors which makes it more versatile.
Transistors | Germanium Transistors | NTE Electronics
Germanium Transistor Selection Guide. The development of the germanium transistor in 1948 opened the door to countless applications of solid state electronics. From 1950 through the early 1970s, this area provided an increasing market for germanium, but then high-purity silicon began replacing germanium in transistors, diodes, and rectifiers.
Early Power Transistor Evolution, Part 1, Germanium
Germanium was the first semiconducting material widely adopted for transistors, power and otherwise. One early power transistor I came across was the 2N174, shown in Figure 1. Figure 1: 2N174 Power Transistor. Following are some key maximum ratings on …
CUTLER HAMMER KD2250WS44 - gkooo.com
af125 siemens germanium pnp low power transistor to-72 original packaging af125 siemens germanium pnp low power transistor to-72 4-leads rare ady13 siemens pnp transistor 60v, 0.6a, 0.25w, 3pin, 1 piece ad139 power germanium transistor ad133 iv germanium transistor siemens pnp 50v, 15a, 30w, to-41 neu ac153k - ac176k matched pair ...
Replace Germanium Transistors with Silicon PNP ones! - Page 1
Replace Germanium Transistors with Silicon PNP ones! If you ever had a vintage gear where you needed to get it to work but needed a replacement for Germanium transistors especially in audio circuits and you wondered if simply replacing with Silicon PNP transistors would work (with some tweaking and minor adjustments), the answer is yes.
PNP Transistor Circuit Characteristics, Working, Applications
PNP Transistor Example. Consider a PNP transistor, which is connected in the circuit with the supply voltages VB = 1.5V, VE = 2V, +VCC = 10V and –VCC = -10V. And also this circuit connected with the resistors of RB = 200kΩ and RE = RC (or RL) = 5kΩ. Now calculate the current gain values (α, β) of the PNP transistor.
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NPN Germanium Transistor Set - 5 pieces - JoeDocMusic
NPN Germanium Transistor Set – 5 pieces. $ 23.99. 5 piece NPN Germanium Transistor Set. 2x AC130, 2x 2N1304 & 1 bonus to round out the gain ranges. All pretested and gain sorted. Low leakage NPN Ge, Icb < 200mA! NPN Germanium Transistor Set - 5 pieces quantity. Add to cart.
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ac128 germanium pnp transistor | All About Circuits
Joined Dec 20, 2007. 11,249. Aug 9, 2011. #10. The very old AC128 germanium transistor had a different base-emitter voltage requirement compared to a silicon transistor and had a poor high frequency response so it will sound different to a silicon transistor.
Does it matter if I replace germanium transistors with ...
Silicon transistors started replacing germanium but I guess not quick enough for that article. As mentioned, you want to use the PNP version like a 2n3907. And keep in mind that while they work in similar manners, germanium diodes have a forward voltage of 0.2~0.4 volts on average, while silicon will have 0.6 to 0.8 volts.