Switchable circuit

Selling my custom built EL34/KT77/6L6GC/6P3S-E Single ended class A Triode/Ultralienar tube Amplifier. I have built this amp myself based on a Douk Audio chassis but with some important design improvements and better components as follows: - Audiophile coupling caps: Jantzen Audio superior Z 1200V - ELNA Cerafine cathode bypass caps and Vishay filter caps - Takman(Japan) and Allen Bradley carbon composite resistors in audio critical circuit spots - Triode / Ultralinear switches (original design is only UL) - Cathode bias adjustment knobs with resistor networks in parallel (inexistent in the original design) Adjustable bias allows for usage with a wide range of tubes. It is thus a great start for tube rolling. The amp is offered with the following tubes: A pair of JJ KT77 power tubes A pair of 6P3S-E power tubes A pair of 6H8C preamp tubes 1X Svetlana 5U4G / 5C3S rectifier tube 1X 5C4S / 5Z4 rectifier tube Important:  The amp should not be power cycled while hot/warm to avoid cathode stripping and rectifier sparks in order to preserve the life of tubes. UL/Triode switching should be avoided during operation Bias switching during operation is okay in this configuration but should be avoided. Single ended triode amps are low power and highly recommended to be used with high sensitivity 90dB+ speakers Selling due to involvement in several other tube amp projects. I will answer all of your questions Flexible shipping to EU and UK

PROCO FAT RAT (LM308) Condition: Mint condition (home use only) Year: 2017 Serial no.: 372671 Modification: Op Amp LM308; like the historical one; stock chip OP07DP included. Made in USA The FATRAT uses the highly acclaimed '85 Whitefact Reissue RAT as our platform, adding a bass enhancement circuit, a brand new switchable clipping section, and a whole lot more Description: Clipping Section: Switchable between silicon clipping, as in the classic RAT, and a mosfet/germanium clipping section, which is entirely new to the RAT line. The mosfet clipping section gives you subtle scoop and smoothing in the upper mids throughout the entire gain range of the pedal, and makes the pedal sound more amp-like and natural. Socketed Op amp: The pedal will ship with the current stock chip (OP07DP). However, changing over to the mythical LM308, or other compatible chips will be a quick and simple mod that you can do solder-free. Large, CTS Pots: They give you a smooth, even sweep throughout the range of the Distortion, Filter, and Volume controls, allowing you easy access to the myriad of sweet spots in the tone machine. Fat Switch: Provides a significant bass boost and simultaneous high cut – this makes the pedal more suitable for bass guitar, lower tunings, as well as fattening up and smoothing low gain settings, making this a good candidate for overdrive use. 9 – 18V Operation: Increased headroom and fidelity with 18V operation and less “sagging” as compared to older RATs. Specs: 100% analog signal path Classic, virtually indestructible steel enclosure Heavy-duty, industrial footswitches, knobs, and jacks On/Off LED indicator Military-spec glass-epoxy circuit board “No tools required” battery compartment (battery not included) 2.1mm standard barrel jack (9 or 18V operation)

Je vends une enceinte OMNITROIC MOM10BT sous garantie équipée d'un récepteur micro sans fil, d'un micro sans fil avec écran, d'un pack de deux batterie. Le tout dans le carton d'origine de l'enceinte protégé par les polystyrène sur mesure. Le système est idéal pour les discours et la diffusion d'un fond sonore grâce a son module bluetooth intégré. Voici le contenu du pack:  OMNITRONIC MOM-10BT4 Modular Wireless PA System Quantity: 1 UP: 379,00 € TUP: 379,00 €   OMNITRONIC MOM-10BT4 Receiver Module Quantity: 1 UP: 39,90 € TUP: 39,90 €   OMNITRONIC MOM-10BT4 Wireless Microphone Quantity: 1 UP: 49,90 € TUP: 49,90 €   Battery 12V/7000mAh Quantity: 2 UP: 29,90 € TUP: 59,80 € Dans le cas de l'achat de deux enceintes j'offre le kit de liaison sans fil pour interconnecter les deux enceintes. Mobile PA system with battery operation and different equipment options - Wireless PA system with modular structure for maximum flexibility - For mobile applications, e.g. events, sales presentations and lectures - Wireless audio link operation of several MOM-10BT4 systems for larger events - Flexible use: mono operation with several systems or stereo operation with 2 systems linked together - 80 watts output power - Power-efficient and battery-saving class D amplifier - High-power 2-way speaker system with 25 cm (10") woofer - Mains operation or battery operation for 6-8 hours of music playing - 3 extension slots for retrofitting wireless receivers - 1 extension slot for retrofitting an audio link module - 1 extension slot for retrofitting a CD/MP3 player with SD slot and USB port - Integrated Bluetooth audio streaming for your smartphones and tablets - 2 microphone inputs (combination XLR/6.3 mm jack) with adjustable reverb effect - 1 line input (XLR und Cinch), switchable stereo/mono - Microphone inputs, line input and Bluetooth module with separate volume controls - Mixer section with common master control and 2-band tone control - Stereo/mono switch for the master signal during audio link operation - Additional XLR output for linking several systems via cable - Switchable microphone priority circuit - ideal for presentations - Built-in fast charger (5 V/2 A) for convenient charging of your mobile USB devices - 5-digit battery level indicator - Integrated automatic charging of the batteries - 2 rechargeable lead gel batteries are required for battery operation (item 13106993) - Ergonomic design - Light-weight black plastic enclosure with metal grille - Flange for speaker stand installation - Transport aid: Trolley Receiver - Control: Bluetooth built-in Power supply:230 V AC, 50 Hzor 12 V DCPower consumption:100 WBattery pack type:2 x Lead 12 V, 7000 mAh, 84 WhAccumulator:battery operation up to 8h recharging time 5hFrequency range:50 - 18000 HzPower connection:Mains input IEC connector (M) mounting version Power supply cord with safety plug (M) (provided)Battery/battery pack (not included)Output power:80 W RMSType:Compact cabinet speakerSize of woofer:(10") ca. 25 cmWidth:33,5 cmHeight:53,5 cmDepth:37,5 cmWeight:15,05 kgReceiverFrequency band:2.4 GHzControl:Bluetooth built-inAmplifier power:80 W RMS, 160 W max.Inputs:Mic:combination XLR/6.3 mm jackLine:XLR and RCA Cinch L/ROutput:Line:XLRLF speaker:25 cm (10")HF speaker:2.5 cm (1")Distortion factor:1 %

- Compresseur VCA double canal avec stereo link (comparable SSL 4k) - Très grande plage de réglage d'attack (de 0.01ms à 500 ms !!!) et de release (jusqu'à 10s), permettant aussi bien de traiter les transitoires les plus rapides, que de réguler le volume de manière naturelle. - Ratio variable de 1:1 à 1:50 (limiter) - Filtres de sidechain avec choix type de filtre (bell ou shelf), contrôle de la fréquence (1 à 16 kHz) et de la pente du filtre Q. - Fonction VTS permettant de mettre le filtre dans le circuit audio principal, soit pour écouter le filtre soit pour l'utiliser comme EQ. Ses paramètres, son filtre et son caractère lui permettent une très grande plage d'utilisation, du bus master à la voix, en passant par la basse ou les batteries. Fabriqué main dans les années 90 en Allemagne (Munich) par un petit fabriquant de consoles, comparable à du Roger Schult, ADT, Zähl etc... Fonctionne en 220V, entrées et sorties XLR Fonctionne parfaitement, des traces d'usures, mais rien qui ne gène son fonctionnement. Frais d'expédition à la charge de l'acheteur. --------------------------------------------------------------------------------------------------------------------------------------------- - Double channel VCA Compressor with stereo link (comparable SSL 4k) - Wide range of attack (0.01ms to 500 ms !!!) and release (up to 10s), allowing the compressor to catch very fast transients as well as working as a very natural sounding "automated fader". - Ratio from 1:1 to 1:50 (limiter) - Fully parametric sidechain filters with switchable shape (bell or shelf), frequency control from 1 to 16 kHz, and Q control. - VTS function put the filter in the main audio circuit, and can be used as a preview function or add a very nice 1 band fully parametric EQ filter to your signal chain ! The wide range of parameters and the filter make this unit very versatile. It can be used on a variety of scenarios going from the master buss to the drums as well as the vocals as an HF limiter or a classic VCA compressor to the bass guitar... Handmade in the 90s in Germany (Munich) by a small mixing consoles company, very high quality, comparable to Roger Schult, ADT, Zähl etc... Work with 220V, XLR in and outs. In perfect working condition, some wears on the case, but nothing altering the function.

Welcome! For sale is Electro-Voice CPS4.10 apmlifier with 4 channels of each nominal output is 1000W. MSRP: 3200 US$ Amplifier was never used (just tested before i made this listing) and it is 100% operational. See more technical details below. Shipping We will ship to any location worldwide. Please send us message for shipping cost to your location. All customs fees are not included in the international shipping costs. Buyer is responsible for all customs fees.  Please contact us if you have any question regarding this item.  CPS4.10 This four-channel CPS amplifier from Electro-Voice features groundbreaking Class-D technology for maximum amp efficiency and minimized heat dissipation in 19-inch racks. Each channel individually provides transformerless, switchable output characteristics, which enable specific channels to achieve maximum drive. Power into 2 Ohms, 4 Ohms, 70V, or 100V line – no transformers are required. In Hi-Z operation (70V or 100V), a 50 Hz high-pass filter (HPF) provides protection against loudspeaker transformer saturation. Additionally, amplifier channels can be bridged in pairs for double output power. Each contractor-friendly, multi-channel CPS amplifier also features Phoenix-type connectors for inputs and outputs, pre-programmable power-on delay, easy power-on remote via contact closure, and rear level controls. A module slot for the RCM-810 remote control module provides control network functionality, allowing for remote system diagnostics and control via IRIS-Net software. In addition, using the RCM-810’s Variable Load Drive feature can tailor the amplifier’s output power to match every load from 2 Ohms up to 10 Ohms in steps of 0.1 Ohms. Features: - Class-D design for high-efficiency and low heat dissipation - Flexible matching for Low-Z and High-Z applications - Optional remote control via IRS-Net - Four-channel design in 2RU chassis Specifications: - Maximum Midband Output Power (THD=1%, 1kHZ): 4 x 1000W @ 2 ohms 4 x 1000W @ 4 ohms 4 x 1000W @ 70V 4 x 1000W @ 100V - Rated Output Power (THD 4 x 900W @ 2 ohms 4 x 900W @ 4 ohms 4 x 900W @ 70V 4 x 900W @ 100V  - Maximum Bridged Output Power (THD=1%, 1kHz) 2 x 2000W @ 4 ohms 2 x 2000W @ 8 ohms 2 x 2000W @ 140V 2 x 2000W @ 200V - Maximum RMS Voltage Swing (THD=1%, 1kHz, per channel): 100V - Power Bandwidth (THD=1% ref.1kHz, half power @ 4 ohms load): 10Hz-25kHz, 50Hz-25kHz  - Voltage Gain, ref. 1kHz: 32 dB (2ohm/4ohm mode), 33dB (70V mode), 36dB (100V mode)  - THD at rated output power (MBW=80kHz, 1kHz): - IMD-SMPTE, 60Hz, 7kHz: - DIM30, 3.15kHz, 15kHz: - Maximum Input Level: +21dBu - Crosstalk, ref. 1kHz at rated output power: - Frequency Response, ref. 1kHz: 10Hz-30kHz (+/-1dB) - Input Impedance, active balanced: 20k ohms - Damping Factor, 1khz, 8 ohms: >240 - Slew Rate: 28V/us - Output Noise, A-weighted: - Output Stage Topology: Class D - Power Consumption, 1/8 max. output power @ 4 ohms: 840W - Power Requirements: 220-240V, 50-60Hz or 120V, 50-60Hz or 100V, 50-60Hz - Protections: Audio Limiters, Temperature, DC, HF Short Circuit, Peak Current Limiters, Inrush Current Limiters, Turn-on Delay - Cooling: Front-to-rear, continuously variable fans - Ambient Temperature Limits: 40 to 105 deg. F - Safety Class: I - Dimensions (W x H x D): 19" x 34.7" x 16.6" - Weight: 24.6 lbs - Optional Accessories:  2-way internal X-Over cards, 24dB, LR, XHP-5 for 500Hz/XHP-8 for 800Hz RCM-810 IRIS-Net Control & Supervision Module Rear-Rackmount Kit RMK-15

Integrated Amplifier LUXMAN L-230. Superb condition except really small dent on top right corner (last photo).  Famous Duo BETA circuit, Phono MC, Filter (various adjustments), Tone Control (switchable), Tape-to-Tape, Speaker Selection (A, B, A + B). FM StereoTuner LUXMAN T-230 (totaly mint condition) comes as a bonus. Comes with original manuals. Entries:Phono MM / MC; Tuner; Stage I + II, AUXQuadro:noHaut Lével sensitivity:160 mVHaut Lével impedance:40 kΩHaut Lével Frequency Response:10-100,000 (+ 0 / -1.5 dB) HZSignal / Noise Haut Lével:> 117 (500 mV) dbPhono sensitivity:1.8 mVPhono Impedance:0.05 kΩPhono Frequency Response:RIAA (± 0.5 dB)Signal / Noise Phono:> 90 (5 mV) dbPhono sensitivity:0.25 mVPhono Impedance:0.1 kΩSignal / Noise Phono:> 67 (0.3 mV) dbEqualizerTone settings:Bass; TrebleFilters:LOW (70 Hz) HIGH (7 kHz) Phono Subsonic (15 Hz)Thrust Adjustment:On / OffPower AmplifierExits:2 x 2 Speakers; PhonesContinuous power 8Ω:63 + 63 (IHF); 75 + 75 (DIN) WattsHarmonic Distortion: For the delivery to UK additional fees and taxes may apply.

Vends Moniteur SONY 9" PVM-9045QM - Great Condition - Envoi rapide et soigné. 9-inch 450 lines color video monitor HR Trinitron CRT provides a high resolution of 450 TV lines Beam current feedback circuit for stable color reproduction Composite, Y/C, RGB and component (Y/R-Y/B-Y) inputs Accepts external sync Analog component level selectable between BETA and SMPTE/N10 Color temperature D65 Built-in H/V delay, underscan, blue only and tally functions Bias/gain control Aspect ratio 4:3 and 16:9 switchable Wired remote control capability Manual degaussing Mountable into a 19-inch EIA standard rack with a second PVM-9045QM (or the optional blank panel) and the optional rack mounting bracket AC/DC operation capability 8 inches viewable area, measured diagonally.