Description

Store category Sign Up Now ! You may also like AM FM Radio Kit Parts CF210SP Suite For Ham Electronic Lover Assemble DIY L2KE Product Description CF210SP is a new type of radio FM, AM two band radio, the FM band using the CD9088 chip, which uses patch element SMT package, the receive frequency range of 76-108HMZ, not only to accept the FM radio, can also receive campus radio and part of the audio signal of the television stations; AM band using direct IC the TA7642, receive frequency range is 525-1605KHZ circuit is simple, assembly success rate, a better selectivity having a little;. amplifier circuit using TD2822 special function ICs having loud. Sound quality is good. Circuit works 1. Frequency Modulation (FM) section CD9088 is a dedicated single-chip FM radio chip, Its simple external circuit, the circuit was built frequently 70KHZ phase locked loop system, selectively implemented by active RC filter, mute circuit can be suppressed non-IF signal and the IF signal is too weak. FM signal input circuit rod antenna C8 / C10 and L1 IC1 11, 12 feet into the mixer circuit, local oscillation circuit uses a variable capacitor CA / L2, etc. vitality can be achieved manually tune. Circuit R2 / C2 to squelch circuit, 3 feet to the audio loop filter capacitor C4. Indirect C13 6,8 feet of the intermediate frequency feedback capacitor, 7 feet is connected to C14 was the low-pass capacitors, between C17 of 8/9 feet is IF coupling capacitor , 10 feet connected to the C12 is a limiting amplifier low-pass capacitors, 13 feet connected to the C6 of the limiter offset voltage capacitors. 2. Amplitude modulation (AM) section AM band using Direct IC TA7642, TA7642 IC has 10 transistors internal composition, its appearance uses encapsulation mode a TO-92,1 feet grounded, 2 feet input , 3 feet output. Audio signal output from 3 feet, through R6 / C18 is coupled to the input of the power amplifier IC TDA2822 the power amplifier, pushing the speaker working. Return Policy Shipping Informations Payment About us Contact us Return Policy WE PROMISE YOU CAN GET THE ITEMS YOU PAID OR REFUND. To USA: Send by e-package. To other countries: Order more than $25, provide free tracking number. Order less than $25,customer can pay $3 to get a tracking number. If you can't receive the product within 2 months (60 days), please contact with us,we promise to payback 100% of your money. Shipping Informations We provide airmail service with good package . The items will be shipped within the nest 2 business days after we received the payment . when you buy multiple items ,your shipping cost will be combined with discount. Country DELIVERY TIME Shipping time will be longer than below period due to the flight and holiday WORKING DAYS 5-7 8-10 12-14 15-19 20-22 WORKINGDAYS+SATURDAY+SUNDAY 5-9 8-15 16-20 21-25 26-30 Australia Rate(time arrived) 21.4% 52.1% 14.3% 7.2% 4% United States Rate(time arrived) 5.2% 80% 14.3% 0.5% United Kingdom Rate(time arrived) 9.9% 63.2% 19.1% 3.4% 4.4% Germany Rate(time arrived) 11.1% 22.2% 30.3% 20.9% 15.5% Canada Rate(time arrived) 2% 45.1% 31.4% 17.6% 4% Italy ,Russia Rate(time arrived) 2.5% 10.2 18.2% 17.3% 31.3% Spain Rate(time arrived) 3.5% 25% 47.9% 12.9% 10.7% Brazil , most of the south America country Rate(time arrived) Most package will need 4-8 weeks Other country Rate(time arrived) 0.5% 8.6% 15.0% 43.8% 28.1% Payment We accept Paypal. Please leave note for your special request ( such as color, size, package... ) when you pay the order. About us We located in the biggest electronic market in China--HQB(Shenzhen) ,Specialist in ICs over 10 years, we seek to establish long-term business relationships. Real store with large stock ICs, 100% as describe. Best price, Good quality. Can get almost everything at the lowest price *HIT ALL PRICE,14 days NO-QUESTION- RETURN Contact us